I went to an outlet today and Tommy Hilfiger and Ralph Lauren were having large sales $20-40 plaid shirts. I went with a female friend to help me choose because I don't have very many plaid shirts and thought I should get some. However a lot of the stuff I chose, she'd tell me "that looks like something my dad would wear." "that's something an uncle would wear"..etc then I'd find some other plaid shirts and she'd be like "yeah this looks very nice, etc". to be honest, to me, they all look alike. what's the difference between these types of plaid shirts?