Things adults do that you find (mildly) juvenile

Having problems finding stuff you can eat, whether because you’ve got problems with textures, don’t like an ingredient that’s very popular locally, allergies, religion, whatever… not a problem.

Whining that you “can’t eat any of this” after you checked the menu posted outside and declared that yes, it was acceptable? I expect better from toddlers.

I find the fuss that can surround spectator sports juvenile, but it’s fun to watch so long as people are civilized about it :slight_smile: Does people-watching count as a spectator sport?

Aside of being in complete agreement with Mr. CS Lewis, I happen to have kids in my life; when a specific book, movie or series makes big waves I make a point of becoming familiar with it so when I’m talking with those kids I’m not That Old Clueless Person.

This is far too narrowly tailored to apply to adults in general, but in MLB, when a batter is hit by a pitch and begins charging towards the pitcher on the mound, that’s just absolutely cringeworthy.
Strangely, I wouldn’t find it ridiculous if an athlete punches another athlete who is standing just yards or inches away (if that other athlete instigated the confrontation,) but the fact that the batter has to first run a long distance to get to the pitcher is what makes the whole thing laughable.

Anyone over the age of 18 bragging about sexual conquests.

… or genital endowments… I went thru OCS with a guy whose last name was the same as an organ manufacturer, so he was always bragging about his <brand name> organ. So obnoxious!

some people may not trust the cleanliness of glass

actually, even with my eyes closed, some soap/conditioner DOES get into my eyes

It bothers me inordinately to eat a meal with someone who methodically and precisely as possible cuts a steak or chop into small pieces before taking a single bite. A lot of them don’t do this with fowl or seafood, and that bugs me a lot, too. Don’t get me started on people who season (salt, pepper, pepper sauce, etc.) everything before tasting it.

It’s none of my business, really, of course.

I always like the ones where the batter gets hit. And at first the batter is all like: “It’s cool man. I’m just gonna walk my base”. And then half way to first base, the batter will dart towards the pitcher, and shit gets crazy.

This is what I came here to post. I once told some adults that I followed my local sports teams as a kid, and they took it as an insult to their maturity as though I meant only kids would follow sports. I wasn’t thinking that, but the fact that they were made me agree with them. They know it’s childish, but it’s usually meaningless tribalism that prevents actual violence (until hooliganism at least), so they don’t care.

Making everything about them and getting cranky when they’re not the center of attention.

My brother-in-law pulls this shit frequently. He threw a hissy fit 3 days after my mother died because my sister and I were focusing all our energy on planning the funeral and working through our grief instead of paying attention to him. He came back from running errands, waited in the living room for about a minute, and when we didn’t drop everything to ask about his day, he stormed upstairs and began loudly calling the airlines asking about return tickets and slamming his suitcase around. After my sister talked him down, he came downstairs to give me a piece of his mind about how he didn’t appreciate being ignored. Seriously, dude? You couldn’t acknowledge your wife and extended family may not be in the best psychological state 3 days* after their mother died* and may be a little awkward? You had to make it all about *your *feelings? I bit my tongue, but all I could think was “you’re a 70-year-old grown man, but you’re acting like a whiny 12-year-old whose friends went to the mall without her.”

Also, getting shit-faced fall-down drunk every weekend after you’re out of college, say 23 or so.

The use of “mom” and “dad” not merely as pet names for when one is speaking directly to one’s own parents, but as general purpose synonyms for “mother” or “father.” “Breastfeeding information for expectant moms,” “I was so proud when I became a dad,” etc.

That’s a battle you will never win.

I was halfway through the third season of “Sons of Anarchy” on Netflix before I fully realized I was watching a soap opera.

I do a lot of the things in this thread, so I wouldn’t call myself an expert on maturity. But I’ll step in to explain an interest of mine that baffles a lot of people for some reason.

Yes, I do like My Little Pony. I’m not obsessed, I don’t collect merchandise or talk about it at length on the Internet. But I do watch the show. Here’s why I like it:

It helps me combat my severe mental illness.

Yes, really. That’s the big secret. I have depression and severe anxiety, and it’s a heartwarming, sweet, innocent, idealistic show. I watch it because it’s comforting. I spend ninety-nine percent of my waking hours worrying about something, even if it’s just in the back of my head. When I watch My Little Pony, my brain is comparatively quiet. I don’t need to think about a show like that.

As for how I could find it entertaining instead of mind-numbingly boring, well, it’s simple but it’s not stupid. It’s idealistic, but they’re ideals we should all want to believe in, if you ask me. The dialogue can be funny or clever at times. It’s not all brilliant stuff, but it’s engaging enough. For twenty-odd minutes my attention is devoted solely to the daily lives of colorful ponies instead of, say, the Trump presidency.

My entry here is “comic books” for the same reason. To invest yourself enough to thoroughly enjoy serialized comic books despite their soap opera nature is literally childish. As in, if you had read comic books during childhood, you should have figured out by now that there is no finality and no point in investing energy in them when everything will change in a couple years, and perversely, nothing will change since all the main characters will still be around and be in mostly the same situation, and the counterexamples come about not due to advances in the plot but due to advances in chronology, changing mores, and deus ex machina resets/reboots.

Honestly, I wasn’t thinking about watching the show. I was referring to the Brony thing. I’ve never seen the show and I have only a passing awareness of it, but what I’ve heard of the obsession within some groups seems very childish to me.

In the grand scheme of life, it’s probably a harmless obsession, and it certainly doesn’t affect me at all, but it was my honest answer to what I find to be juvenile. I’m sure there are those who would say the same about my nightshirt covered in pictures of kittens.

Dressing up in a full costume for Halloween.

I like how Jim on The Office handled such occasions. He made trivial, satirical gestures towards dressing up. Once, he wore a simple name tag. When people asked who he was, he pointed to it and answered, “I’m Dave”.

I think it is more just a surface layer to a sense of community about other things, in a similar way to how this site is only on the surface about reading a column in a newspaper. For instance, in what I believe is the main MLP related site, they have daily and nightly discussion threads. This is the most recent thread, the 1,506th one. In it, you’ll see them talking about pretty much random stuff. So it is a little like going to an SMDM meetup dressed in a Cecil Adams costume, if there was any such thing.

I wish we had a sarcasm smiley because that’s how I meant it. OF COURSE, Disney World is for children and families, and I fully expected that when I went there. But they cater to adults, too, or they wouldn’t have nightlife attractions at Disney Springs, hotel options that are more adult-oriented like the Grand Floridian, or the numerous spas around the complex.

I expect to get flamed a bit, but…

Wearing a cap with the bill turned backwards (or to the side, which is even worse). I find it OK if you’re a student in college, or a twenty-something, or even a thirty-something as long as you’re deliberately trying to be casual and “cool.” When you’re 43 and have your teenage kids with you…not so much.