I do get my armpit hair shaved at the saloon only when i go get a haircut. That is it of it, nothing religiously liking shaving beard. I like the smooth look when no hair but its nothing like i hate it. I'm an active person and do yoga, running and gym and I feel having armpit hair is beneficial as it avoids skin to skin contact hence no rashes, at the same time the retaining of sweat causes bad odour is a disavantage.
Mine seems to want to keep on growing, unlike some other areas where the hair seems to get to be a certain length and then it stays almost static. I would say my underarm hair is on a once or twice a quarter maintenance schedule, and I use my second tier electric razor's sideburn trimmer to take it off. This trimming is to a very short length, not down to the skin, so I always have a little there. If I did nothing it would be poking out from under my arms and that doesn't appeal to me.
I have recently gotten to the point where I keep it shaved off. I will use a razor about every couple of weeks as it does not grow fast. I'll do it more often if I am going to be around others. I also shaved everything I could reach recently and continue to do so since my hair grows in very spotty.
I actually do shave pubs and armpits too.
I started to see how it looked. I liked it.
Also, in summer especially, less sweat, and definitely less odor. Not having pubs I do not have bad smelling anymore, underwear or not. So two reasons for doing it : feels and look better, way better in summer, not smelly anymore.
I do not think youre too much of minority. I had no girls (while dating) saying anything to me when they saw me. It has never changed a thing.