Fair enough, respect you’ve put a number to it. Just wondering what you’ve based it on: studies or just what has typically happened for young players. Not trying to catch you out here, despite all the racket about you
Call it good ole conservatism if you like.
And a bunch of feelers reg state of fitness advancements we have that weren't there before. In general it's more that we extended end of career lifespan of outfield players rather than be more able to break them in early
Fully recognise there are genetic freaks that can outperform their age. I.e. those suggested by Jammie. Is Lamal one? Cules will endeavour to roll their dice towards their needs and desires. Both Messi and Ronaldo at 17-18 in early 00s without turbocryochambers played 1500 mins, doubled their playing time within a season, while still behind known vets in rotation to begin with. That said, have never been the sole or central weapon playing day in day out every 3 days until at least 20. Often w/o the manager having 'luxury' to get them subbed
Ps racket being by usual suspects is worth absolutely nothing. Good read over morning coffee every day