Why would I use Bonucci as reference, he was in serie B at Dragusin’s age and wasn’t a regular for anyone in serie A until he was 22.
Chiellini is a better reference though. His first season getting real minutes in serie A was at Dragusin‘s age and then made 15 starts the next season for Juve. So using his timeline, Dragusin should be fine as a third stringer next year.
i don't give a shit about players' age. remember rugani who played a full season without being subbed? at that point he was twice the player dragusin is at the moment. and he still failed to establish himself as an undisputed starter for juve. dragusin is yet to prove his worth as a regular for a mid-table team, let alone juve.
again, age doesn't matter, experience, consistency and actual performances do. i'd take bremer over any other serie a defender at this point, and honestly i couldn't care less about his age. he's been playing for toro for 3-4 seasons, he gradually got better and better. imagine wanting him 3 years ago cause he had 5-6 acceptable games in a row and looked good vs some lolzilian youth players on youtube.
i think dragusin should gain experience for at least a full season for an other team. i have no idea about gatti, but if he ends up as a bargaining chip for bremer then his service will be much appreciated.