AC has 5 grades. 3 is longer than 8 weeks, more likely 3-4 months. 4-5 requires surgery and are similar recovery of 3-4 months.
Dislocations can lead to much worse injuries. That is why they will put kids in braces. You really don’t want it to dislocate over and over again. It will make the shoulder slop with much bigger tears and potential for multiple. Yes, they can play with it but I doubt most skill guys can/will play unless the tear is minor.
I’ve had almost all of these injuries:
Ac grade 3
Hundreds of dislocations with 3 different tears
Biceps tear at the labrum
SC grade 3
Multiple cuff tears