I agree that Modrić should stay with Croatia for as long as he wants to be. And I'm sure that Dalić will never kick him out of the national team. Everyone in Croatia knows how much Modrić has given to the national team. I just watched his interview on TV where he said that he will be at disposal to the national team for as long as he thinks the national team needs him.
Modric is still a very influential player for Croatia that is why he is captain, and so far as he continues to be useful, there is no need to retire. I am watching the Nations league semi finals, where Netherlands play Croatia, and in this game Luka Modric still plays fine football for Croatia. Age does not count where a player can still make an impact in the National team especially a small and strong nation in football like Croatia. Modric still wants to win medals for his country, he should not be pressured into retirement, he still has enough quality to help Croatia in Euro 2024 if they qualify.