For 18yo and 19yo it stands to reason that 60 TSP is too high as very few players satisfy such requirements at the beginning of a season.
I drafted a TSP 67, 19yo guy
(38002747) and this dude is an absolutely beast - if it wasn't for his week FT shooting (whatever), this would be the perfect player to start with. So if we see this player as somewhat of the minimum for what can be released as FA, the chances are very slim to see more younger quality players being released as FAs.
Conclusion: The requirements should be lowerer to like 40 TSP for 18-19yo players. Most of them end up as mediocre 70 TSP monoskill dudes anyway.
Größter Knecht aller Zeiten aka His Excellency aka President for Life aka Field Marshal Al Hadji aka Lord of All the Beasts of the Earth and Fishes of the Seas aka aka Conqueror of the Buzzerbeater Empire in Europe in General and Austria in Particular