Yes this is true! Many young European players have a great possibility of playing in some European team, of course, there are teams that are the elite of Europe, but there are also teams that are of a lower quality.
For a young man to play for a big club, it will depend on his performance, opportunity and also on his manager.
In the last world cups, I confess that Germany played below its potential, it is far from being the team of the 2014 cup, I could even say that the German team is in decline, another team (outside Europe) that is also in decline is Brazil, they will hardly have another team like the 2002 or 2006, for example.
I am not sure whether you can compare Germany with Brazil. The problem with Germany is that younger players are not coming up. They are overdependent on some of the oldies such as Ilkay Gündogan, Marco Reus, Manuel Neuer and Thomas Müller. On the other hand, although there is some dependence on Neymar, Brazil do have a great bunch of younger players. I am talking about Antony, Emerson, Vitor Roque and Raphinha. The only issue with Brazil is that their national league is not strong and most of the players are dependent on European leagues.
I didn't know of the football situation in Germany, I imagined that they had some young promises to compete in the next world cups, but I believe it will be difficult for us to see a Germany like 2014 world cup.
Regarding Brazil, unfortunately they don't have a new star to replace Neymar, they have good players and that's true (Raphinha, Vini Jr, Casemiro, Richarlison and others).
The Brazilian national league (Brasileirão/Copa do Brasil), it is weak compared to European teams, but there are good teams that always stand out in Libertadores and Sul Americana, Sao Paulo, Palmeiras, Flamengo, Corinthians, which are some examples.
Well, it's not that they are weak because things in the Brazilian teams are quite tough, the climate and all the competition is tough, I would like the qualifiers in Europe and around the world to change, that is, that the European teams play as well in South America and they have to experience climate changes to see how their performance will be, in Europe things in soccer are different because they have more support, that is, they put more money into it, but the quality and the way of playing in Argentina, Brazil is too much. Didn't you know that the Brazilian team has to have very high standards for players to qualify for the national team? They require height, strength, there are some players who, since they were little, have only dedicated themselves to playing soccer very well because they know that the only way out of poverty is through soccer, well, without going too far, you just have to see the life of Anthony (Manchester United ), for him his triumph was to play very well to get his family out of the favelas in Brazil, and then, how many more players are there who are not lucky enough to be seen and who promise in these countries? It cannot be said that the leagues in South America are weaker, there is what Mbappé said and he had to eat his words, soccer in South America is very strong, only it does not have the advertising support like in Europe, and it is because in In some South American countries there are no soccer schools like those in Europe, but only bringing some of the infrastructure from Europe to South America could see great results, between pure Argentina and Brazil they have a lot of material, this without mentioning Chile, Colombia, Paraguay, They are teams and countries that have good leagues but without the slightest help from the governments or from any organization, so it's not that it's easier, it's that the facilities that they have in Europe are not here.
As for Germany, I am sure they have talent, and people who play with their soul, I have played soccer with Germans in my country and these people run like there is no tomorrow, their soccer technique is exquisite, they are very strong, they have such strength that if you don't start running very hard they send you to the ground with just a push, and that's not to mention the height of the Germans, which is something impressive, it's like watching horses run with the ball, if a A small or average player can have a very good performance due to his skill, for example a Messi, but after all they don't have support, so Germany does have high-level players, they just haven't looked for them or haven't discovered them.