Real Madrid has a unique strategy to develop their new players, and they rely on their veteran players. This is because Real Madrid knows how to get the most out of their veterans. Veteran players are still very important on Real Madrid, and this is how Madrid values them for their experience. The veteran players are helping Real Madrid teach the young players to play better. This can shorten the time to develop the young players.
Real Madrid's development focuses on the coach teaching young players. But, they also use their veterans as coaches to teach the young. This is what other clubs are rarely going it. In conclusion, the veteran players helped Madrid a lot in developing the young talent. Because of that, Ancelotti can give real examples to the new players about how to play, and he uses veteran players as role models for them.
Vini becomes the best example, and it shows how well Real Madrid's strategy develops their young players.
You are right that today clubs have abandoned the method of placing senior players in the club as guides as well as extending a club playing philosophy. On the other hand, Real Madrid still adheres to its principles and wants to pass on its vision and mission to the next generation by leaving senior players in the team. From what I see, other clubs no longer care about things like that, which ultimately results in the transition process for young players having difficulty maintaining the club existence and reputation. As a club with a multitude of achievements and a long history, Real Madrid should be a reflection because of the club consistent method and principles.
Each club has its own method, but the method used by Real Madrid is still effective in maintaining its vision from time to time. Now look at Real Madrid's player formation, even though it is filled with young players, we don't see anything different from their perspective in building teamwork, they always look solid and uphold loyalty.