Luka Modric is 38 years old, of course his strength is decreasing and it is time for young players to replace him so that the club's performance remains stable, but in my opinion, Toni Kroos is not too old, he still has enough energy at Real Madrid like Lewandowski who plays at Barcelona, he already has 35 years old but his performance has not declined, I think Real Madrid still needs senior players who are certainly more experienced than replacing them with young players who actually lack experience.
Young players still have optimal strength, but if they lack experience it will actually cause the club's performance to decline and they need to adapt well and build cooperation in order to be successful in facing the match.
Modrid can be said to have lost his place in Real Madrid main squad, his aging factor makes Ancelotti prefer younger players to fill Real Madrid main squad. The presence of a talented midfielder who is still young makes Modric position increasingly threatened, this season he has spent more time on the bench than getting playing minutes. Toni Kroos fate is not much different from Modric, he is also a victim of the increase in young midfielders, especially since the presence of Jude Bellingham in the Real Madrid squad, one place has certainly been his.
Ancelotti must trust more senior players to play as starters in several matches, the experience of Modric and Toni Kroos can help the development of younger players. Young players have power and speed, while senior players have a lot of experience. This collaboration of players from different generations can create a more complete squad and help form a more solid squad.