Howdy youngster...
It's a good question (the teenies in the club won't think so, but I understand how you feel).
Think I was 48 when I got my first one and I did have big reservations before going to my first club meet. Like you, I thought that they would be all bass, bling & baseball caps.
But no (well not all anyway) , the mixture of members is really good, don't think there's many older than me now (53 now) but I've never once felt that age was a problem.
Well I suppose it's a problem if you are only a twenty-something, pay mega insurance and have to worry about looking cool for the girls.
The only thing I personally won't do is have a huge spoiler, graphics and a cabin full of add-on gauges and crap.
Saying that, I must admit that I'm toying with getting rid of my Bomex'd, Veilsided car (see my garage) in favour of a tasteful nice black stocker (with more power)
Go for it...
G