@pastanaga - Well, a trumpet is a pretty classic instrument. I remember wanting to play one when I was a kid. And I think that sometimes people who are good at music in general will just learn several instruments.
I have a friend who seems to know how to play everything you might mention.
Plus the trumpet seems to be one of those instruments that is very distinctive, so it might be more fun to play it in an orchestra, even if you aren't playing solos. I've heard that it can be very difficult to get a solo in an orchestra these days, because there are so few of them to begin with and so many people wanting to play in them. Playing an unusual instrument would be better than playing something like the violin, which is fairly common.