Do you still shower your 6 year old ?

I still help my son in the shower because he just messes around in there by himself and he doesn't always wash his butt crack and his hair good enough so I stand there while he showers and washes himself then I help with his butt crack and washing and rinsing his hair. He also has a really hard time climbing out of the tub without slipping so I help him out but I feel like he's getting older now and idk if I'm helping too much but if I dont I'm scared he's gonna hurt himself and not be cleaned properly.

Is 6 too old to be helping him shower?