a few more thoughts that came to me
after skimming the comments i do have to agree it would be nice if the accidents that cause warriors/apprentices to retire to the elder's den being a percent chance to remain a warrior or perhaps become a medicine cat instead would be nice (perhaps be able to reassign role to medicine cat past apprenticeship in general sometimes if an elderly medicine cat dies early game you get stuck waiting on kits to be born and old enough lol)
related: when my warrior ridgebird was an early retiree he still had an apprentice so it would have been nice if that apprentice was auto reassigned to a mentor that could go on patrols with him
and this could be a me problem lol but it would be nice if you could link / preassign certain cats to go on patrol together bc i do end up with particular pairings / groups / mentor/apprentices that i like sending out together and when the clan gets big i have to reroll a ton of times for them to actually be available to do so lol
perhaps there could even be an alternate tab to patrols called 'training' that is specifically for sending out mentor/apprentice patrols with different flavor text and more reliably rewards experience to your low experience cats (bad things could still happen but have lower odds) but is only available for cats with an active apprentice
having a feature similar for medicine cats errands would also be neat and not feel like they are just stuck in camp