Or did you see any PPLs flying SEP dressed like that in your flying club ?
Being an unmarked jeans and T-shirt pilot myself, I got my first surprise when I saw one of our very active PPLs taking his biennial checkride in a genuine-looking fighter pilot outfit - on a C-172. Unfortunately he crashed about a year later (1 serious + 3 minor injuries + 1 C-182 totalled), confirming that dressing and airmanship are unrelated things.
It's also hard to ignore the desire of a few friends of mine (low hour PPLs) to stand out from the crowd, so they wear club T-shirts and vests with personal name and "Pilot" stitched on well visible areas. Can't blame them: my wife is on the opinion that I am not a pilot (despite having a license stating that I am). For her, pilots are those guys, who wear the white shirt and the bars!
