re: Adults Wearing Sports Jerseys

Just the second part. I don't care.

As for the childish part, I think the people who care the most are people I don't really consider adults anyway. I think it is an issue among the permanently adolescent who are desperately trying to be seen as "adult". I think actual adults don't give it much thought.

I wouldn't wear a jersey on a night on the town or anything, but I wouldn't wear a t-shirt either, and I wear t-shirts as well. If you're going to a game, or going somewhere to watch a game... wear what you want. The only people who care what you wear probably don't matter anyway.