Have done since he was a baby and now he sits cross legged in it and seems happy. He gets washed after each meal, (he eats in his nappy as he is very messy still at 18 mo), after we go out and he gets dirty or sandy, and after swimming and before bed, so he is very clean.
It seems a pointless waste of water to give him the traditional bath each night (we live overseas by the sea and water here is desalinated seawater so expensive and energy inefficient). He gets to play with bath toys and there is a shower attachment so can rinse him and wash his hair etc. He seems quite happy.
AIBU? Dont think so but various acquaintances and family members seem a bit shocked. So thought would ask the MN jury.