Retro cool ?!

Here's something that ive been meaning to write for awhile  but have never been in the mood too .  Why do  children  wear retro music t-shirts !!!  Today it was a t-shirt of  70's rock band KISS , another day it was an old AC/DC  album cover  which a child under 10 was wearing .  This music was not of thier generation and they wear them as a fashion item and have probaly never listened to these bands but they know thier cool . Annoying cos at that age i would have had no concept of what was cool for my parents generation ! Sophisticated at such a young age and aware of retro cool . Makes me sick ! Today they are so aware of what they should be seen to be aligning themselves with too as if they are loooking for a knowing nod from the next generation .....and they pull it off too.....