Wack isn't that old and Nip wasn't that young. He was the about same age as J Cole and Wale, and a little older than Kendrick, Meek, and Drake.
I get what you're saying about being a legend to THEM, but the problem with that is it takes away from calling someone a legend. Tyler thre Creator has a fan base, and is probably a legend to some people... he's not a legend though.