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.
There is a lot of need for experience, a team will never field a completely new player but must have talented and experienced players. Real Madrid are always weak on young players, they are always looking to buy young and talented players. However, in addition to evaluating young players, they also evaluate experienced players enough, if they did not evaluate experienced players, they would not have kept older players like Luka Madrid or Toni Kroos in Real Madrid in this transfer window, only considering the experience of these two stars. Even if these two players are kept in the team, I don't see them in the XI now, I think these two experienced players should be given a chance in the XI, I hope these two stars will not disappoint Real Madrid.
How is Real Madrid weak on young players? Has Vinicius and Bellingham failed that badly this season? The season is still early but I know a lot of players from other teams that are so badly profiled with bad stats in just 7-8 games that have been played because they couldn't live to the fans reality after many defeats but Real Madrid has only lost a single match this season and now standing at the top of the table as number 1 and will maintain it while it last.
One of the youngest clubs that played in one of the toughest Leagues (Premier League) is Arsenal, didn't you see how they play and are still standing in the top 4, what is now the exception about Madrid going with young players? In Real Madrid, they win also, age doesn't matter and very soon, the old men you want so badly will leave for Saudi Arabia where they will go and get their own retirement pension.
I think Toni Kroos will play another 2/1 season in a Madrid jersey. Kross is only 33 years old. And Kross's fitness is good enough. So at least two more seasons we will see Kross with Madrid.
Luka Modric is now 38 years old. He is also one of Madrid's most important players. While Modric may stay with Madrid this season, it is very likely that Modric will not be with Madrid next season. Ancelotti brought Bellingham into the squad as Modrich's replacement. Bellingham has adapted to Madrid's gameplay very well. So I would say that Madrid has been able to produce a worthy replacement for Modrich. Now the Madrid management has to find a suitable replacement for Toni Kross.
The fact that he was pleased by a year contract says that he is going to go either after this season or another season after that, nobody enjoy been bench and most of the new players that were all given at least a 3 years contract say a lot, the motive of Real Madrid in my opinion was to encourage the young ones. Kroos will likely do more than that term, his reason for being skipped in some matches might not be really related to the same reason why Modric is benched. I love the new form of Real Madrid even when some people are not too satisfy with the current ways of the team.