I had white homers and rollers that tamed great from me feeding petting n having perch on me etc. Best time to wean is when they're feathered in under wings. Racers put young on ground at few weeks n let males feed etc, then they take young away to kit box or other young bird loft when they feather in under wings. When the young are put on loft floor, they're most likely to go for food n water there when their and other parents come down seen eating n drinking, as the young mob parents, parents on purpose and accidentally drop food n water repeatedly, teaching young much like chickens. One of good points to solid floor for them vs wire (mine on wire wean later).
If your young are on ground, then they'll wean sooner, but naturally works good too.