perhaps some of the above posters with feminine-sounding handles are younger women who are "stylish" or "in" with their jeans

but a 50-ish plus gentleman would be woefully underdressed or look like a workingman in another setting

so a lot of it is related to who/what/where and can't be generalized

but for those who do not know Europe, it's a kick to see a streetsweeper or a bricklayer working in a suitjacket!!

basic rule- you can't go wrong overdressing

(you will see people in finer restaurants in formalwear- perhaps going to the opera- but they are comfortable "dressing up")