To put it in perspective. For arguments sake, let's say we have 30 players in the academy to choose from.
If each other top level team in Europe have the same number, that is approximately 100 other teams, so 3000 academy players. 1000s more if you look worldwide.
The odds that we produce the player needed with the specific skill set and ability level, and specific opening in the squad, is remote.
Academies are there for selling players to other teams who match the player, and vice-versa.
Sometimes, the pieces fall into place and lots of academy players get to progress at their academy club senior team, but mostly it's a player merry-go-round.
Getting academy players into the 1st team is the exception, NOT the rule.
Anyhoo, carry on with the "academy wishful thinking dream" if that floats yer boat...