What's in for me if a U21 pops up and I don't have enough tokens to buy him?!? The player is 37 rated, so what? I didn't asked for a 37 rated player, I'm in the 3rd level, what do I need a 37 rated player for? All my players have 1 to 3 stars! Its much cheaper for me expend 1M on a 4 stars than expend 21 tokens.
And lets not forget about the salary! Even if I had 21 tokens, how much would I have to pay for a 37 rated U21?!? Its not sustainable!!!
Come on, lets us sign our own U21 for free. Its our only chance to have players of our own nation. Think about it.