I wear them, cause if I don't, I would be sagging all the time and no one doesn't want to see me wearing my lace or whatever underwear I'm wearing at the moment. (unless I wear spandex then I don't wear belts)
I have two belts I just wear and cause they are super cool! I have a belt that has "POW" and "BANG" in different colours all over it, and a Hello Kitty seat belt I bought.
Junior year of high school in my AP Physics class we were instructed to make this trebuchet that had to not only launch a softball very far it also had to be quite accurate. Through the entire process my team and I had quite a bit of a struggle and we made the mistake of making our counterweight ~60lbs. you don't need a 60lb counterweight to launch a softball 20 meters. Anywhoo, moment of truth we've got our trebuchet (named it 'Donna') out on the field and we're on the clock to get this thing to work, meanwhile the wheels have snapped off and during our practice throws the pin (i.e., big old nail) we were using to angle the sling that held the softball was shot into the grass at such a force that it was stuck a couple inches deep in it. Then suddenly, the rope that held our hugeass 60lb counterbreak snaps, causing the weight to slam onto the floorboard and the whole trebuchet trembles pathetically. ♥♥♥♥. What do we do now? Oh that's right, I pull off my italian leather belt and fasten a strap to hold the counterweight. Donna the Trebuchet works with astonishing accuracy. The belt could not be salvaged later, as the knot was too tight and the material too distorted.
TL;DR yes I wear a belt
EDIT: Donna the ghetto-ass trebuchet in her early days
During working hours I am required at all times to wear a belt under the UCMJ Article 92 (pretty much the article covering all the stuff that wont fit into other topics of it)
However, outside of work I wear one, my weight fluxuates alot, depending on the amout of stress and work I am going from it fluxuates from about 125-245. So on some days they fit fine, others they feel like they are about to fall off my lack of an ass.
A lot of the cargo shorts I wear come with canvas belts, so I usually wear those. Even if I'm wearing other pants, I usually wear one of the canvas belts. I have olive green canvas ones, khaki colored canvas ones, and an interchangeable black/blue leather belt for dress occasions. I pretty much have to wear belts out of necessity, since I'm a skinny ass and most of my pants don't fit. It's ♥♥♥♥ing impossible to find 32 and below waist size in my city, but with belts I can wear a lot of my favorite pants that are too big for me now.
Haku will say this:
"The haiku inspires passion,
though the method tires."
I hate wearing belts, but it is a must, as my school has a strict uniform policy. Otherwise, I have never worn a belt outside of that. I don't own any jeans or any of that, so I wouldn't really wear a belt outside of slacks.