Most top teams always go for goalkeepers that's experienced age is but a number in that wing that's why many goalkeepers last in football till they're close to 40 the only thing that would guarantee a youth team goalkeeper some playing time is if he develops beyond imagination then he'll be graduated into the senior team as a second or third choice. Some team even loan them out to inferior leagues to get more experience and develope into the quality they need before giving them the opportunity as an alternative to the first choice.
Every club will want to go for quality because they know the situation of the competition, so you have to go for exactly what is nice because when you look at some goalkeepers, they are not trying at all because they have zero experience, and there is no way that the club will succeed when they don't have a good goalkeeper, the one with experience because the lesser the goal performance, the more goal they will continue to concede. and when you look at the role of goalkeeping, they play one of the key roles in football because they are the ones that can decide whether or not the ball will go inside the net, so there is a lot
It's not about age because for a goalkeeper age is not a serious problem so that every team does not care too much about the age of a goalkeeper because the most important thing is his quality and most teams recruit goalkeepers who are no longer young also have clear reasons because they certainly have a lot of experience and also a strong mentality.
A goalkeeper is indeed not so visible but his role is very central, we can even see in some top teams a goalkeeper often becomes a captain because his control is very broad over all players in every position like Iker Casillas used to be at Real Madrid.