I guess it depends on how old you are and where you live?? I tend to see many adults wearing them freely, usually in sports bars, but I think it's more appropriate in there and see nothing wrong with supporting your team...not sure where the sad part comes in at all. Jerseys are a big part of the sport and for fans to enjoy and it helps get them closer to the game and their favorite player. I agree that some people don't look too flattering in them, but I don't care and I'm not judgemental towards what other people decide to wear as long as it's not offensive.
But overall I'd have to say that adults wearing them in their 20's-mid 40's are pretty strong. You don't see a ton of guys wearing jerseys when they hit north of 50...they must be too lame or too cool!
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