Simply because of feeling special.
Hardcore like to be better than everyone else, isn't that why they are so hardcore, because they are better than everyone else in whatever they do.
So what happens if you go into a Hardcore's garden and play with their toys? When it's THEIR toys, not anyones else toys.
They get pissed off, for a long time.
Now casuals play with their toys, the HARDCORE toys!
Worse, the hardcore toy store have now a softcore toy store, so every casual can play a softcore toy while it look like a hardcore toy.
OH MY GOD!
Please take away the toys from the little kids, only big kids can play with toys!!!