No. KDB got practically no chance. And Mourinho was never going to give a player as young as Lukaku a chance. He doesn't do thatLukaku pushed for the move because he wasn't guaranteed a regular first-team place.
KDB is a similar situation.
you dont know what you are talking about. Mourinho got no problem playing young defenders. His problem is young midfielders and attackers His M.O is to take as little risk as possible and playing young players go against that.Or, If Zouma is anything to go by, he'll play him regularly, and make him an important part of the first team.