When I went to SG, I also bath at the bath tube but using shower. I went to bath first and then asked my husband to bring So in. Then I held So and using the shower. It is quite hard to clean So throughtly as she will move and quite afraid of the shower but at last it is OK. If 伯謙 can stand firmly, it is more easy!!!
Where will you go and when? For our Japan trip, the bath tube was clean but still I cleaned it before letting Matt to take bath there. Agree that you can let Pak Him to take shower if he is not scare of showering. You may put a towel in the bath tube so it will not be slippy. No matter he can stand firmly or not.