Av18tor,
Wear a flying suit if and when you like ... and if other people don't like it, that's their problem.
In my experience, the biggest problem with flying suits is that they are uncomfortable in hot weather (I recall seeing a bunch of US navy pilots wearing them at Sun 'n' Fun last year: boy did they look hot and bothered!); but for actual flying, rather than on the ground, they are usually just fine.
MLS-12D