Class is permanent mate, if you're good, it'll show throughout a career. At 22 you haven't even come close to your best years yet. They are ahead of you.
I'm late 30's and I still relish taking on "younger" sides. They might be quicker, but I've experience on my side, it usually evens it's self out.
In fact one of our best players is 49, honestly, pure class oozes out of him.