If you compare him to Vingegaard, Pogi was better at a younger age because he was actually more professional and didn't spend time at a fish factory. In Pogi's case it was obviously not his age that made him so much better from one year to the next in 2024. It's clearly the new coach.
No. Pogacar wasn´t more professional in theU23s than Vingegaard.
Pogacar's team wasn´t better than Coloquick. In fact, it was a much worse team in UCI ranking.
UAE signed him after the Course de Paix he won. But until then, he hadn't had better professional training or material than Vingegaard, nor a better contract.
That same year Visma signed Vingegaard for 2019.
Both moved to a professional team the same year, although Pogacar was younger, but his amateur career was with a slovenian continental teams.