In public everyday life I wear jeans and a tee shirt as the title says.
Who else knows this is the only way for men to dress?
Fonzie.
Wow, pretty much nailed it in one. Wait, the OP didn’t specify grown men. Um, nope. Got nothin’.
And I thought this was going to be the answer to “What is one of the sexiest outfits a woman can wear?” Boy, was I disappointed. 
Not so fast. This has been my uniform for the past 40 plus years. (I didn’t say it looked good, I just said that’s what I wear.)
Yup. Jeans and a T-shirt for me. Except I wear jeans shorts. Not cut-offs. No Man-Dukes for me. Just nice finished shorts made of jeans material that stop slightly above my knees.
Jeans and a tee shirt. Two bits.
It’s all I wear in the spring, fall, and winter if I’m out and about. During the summer I switch to jean shorts like cochrane described. If I’m just hanging around the house I’ll put on some comfy sweat pants or a different style of pants I don’t know the name of. They’re better made than sweat pants, but aren’t slacks or jeans.
On special occasions I might, might dress up. Depends on what the occasion is. Like my sister’s wedding, I wore jeans and a t-shirt to that, while a long life friends wedding I put on slacks and a polo shirt, only to discover I was over dressed.
When I’m working I’ll wear what is appropriate, or whatever they set their uniform as.
I never understood why blue denim is so roundly condemned as a fabric for non-casual wear. It’s comfortable, it’s usually rugged or at least substantial, it doesn’t snag or pill and rarely stains. And blue pretty much goes with everything.
Who decided that twill or wool or even polyester blends are more “appropriate” for work or other less-casual occasions? The other thing that perplexed me - I could wear black jeans or burgundy jeans or green jeans - same cut, same fabric, different color - and those were acceptable at work. Where is the logic?
My WAG is that for a long time only blue collar workers wore denim. It got to be that the people in charge began to think of it as a poor man’s clothing, and didn’t want their customers to see their businesses as being a place of poor people so it was banned.
Businesses being conservative by nature, they like to stick with what they know works.
Personally, I’d rather shop where the employees are comfortable. A comfortable employee is likelier to be in a better mood, and an employee in a better mood is going to be more willing to help me if I need it, and less likely to be rude. At least in my experience as both a customer and a store manager.
Jeans and a tee shirt is all I ever wear.
I would prefer to wear jeans and a t-shirt as often as possible. But work gets in the way.
I actually do not own a pair of jeans–I have nothing against them, they are just not my “look” and they don’t fit into my lifestyle. I do have some nice Lands’ End pastel- and jewel-toned t-shirts, which I wear with skirts.
Yup.
Same here. Whenever I’m not at work, church or some other function that calls for a bit more dressed up look, I’m in a T-shirt and jeans. (I’m lucky because my office and church are both pretty casual and I can almost always get by with jeans and a polo shirt if I so choose.)
The correct answer is jeans and a Hawaiian shirt.
Some people…
I recall one of Frank Sinatra’s obituaries noting that he never in his life owned a pair of blue jeans.
The great thing about them is that they are “neutral” although blue; not subject to the cool colors vs warm colors rule, and you can wear whatever other colors with them.
(tan khakis with a blue chambray shirt is another exception to the rule, but since it’s become the standard uniform of electronics & appliance store clerks, now is as spoiled as the chrysanthemum buttonaire was spoiled for everyone but department store floor-walkers was a half-century ago)
I’m a jeans and t-shirt kinda guy…but once it a while it’s cool to play dress up and act like James Bond. You should have that in your repertoire.
Nah, it’s winter. Jeans & a long-sleeved T-shirt
Exactly what I have on.