1st of all: Go to the NFL forums or something if you want to declare a law.
2nd of all: What's wrong with wearing jerseys as adults? I'm 13 atm, having no football jerseys atm T_T I'm broke as broke gets broken.
3rd of all: Ray Lewis and Ed Reed = the only Raven jerseys you should ever wear. Greatness.
4th of all: That's discrimination isn't it?
5th of all: Wearing jerseys are a way of showing respect/cheering on the player, say you are a player that just finished your rookie year last season and now you're on the field. Suddenly, you see people with your number on it, cheering you on. It motivates you, stop hating.
6th of all: What's your problem?
7th of all: If nobody bought those jerseys, the NFL teams wouldn't be able to afford many of the high-paid players such as the Patriots (who I hate now that they cost me $5 to my dad for the SB, stupid Brady) wouldn't be able to afford Tom Brady, Randy Moss, others, and now Joey Galloway and Fred Taylor.
YOU sir, are a funny person.