Yeah, the thing is that instant coffee just isn’t any faster or more convenient than a drip coffee maker. For a drip coffee maker you dump in a filter, dump in grounds, pour water in the top, and hit the “on” switch. 3 minutes later coffee’s ready.
For instant coffee you fill up the kettle, put it on the stove, heat up the water, spoon crystals into the cup, pour hot water in, and stir. It takes the same amount of time to boil water on the stove.
I suppose if you’re not a regular coffee drinker and don’t have a coffee maker, instant might look easier. But a french press is just as easy…boil water, dump coarse grounds into the french press, wait a bit, and press down. It takes a bit longer with one extra waiting step, but it’s just as easy.
Since the quality difference is quite noticable, and instant coffee isn’t any cheaper or easier than drip coffee, instant is looked down on. Even people who don’t drink coffee at home will usually have a coffee maker for company. I suppose if you live in a country where no one expects you to serve them coffee, ever, you might not have a coffee maker, and if you never drink real coffee anyway you don’t develop a taste for it. I know I never drank coffee until my 30s, I disliked it but started developing a taste for it slowly. I still like it with milk, but now I actively enjoy the taste.