Varies from different BB (when BB is too little, you need to hold it):
Doctor: When BB can sit (a few months)!
My relative's son: 5 months
Book of USA/UK: 2 years
My BB: 7 months (It is because he feels uncomfortable to "ng ng" on disaper, I try to give him BB's toilet (紅X牌膠便盤). It works!)
how about buying baby's 廁 所 板 only, means only put it on the top of the adult's 廁 所 板 . will it be too high
for baby if sitting onto the adult's 便盆?? but it can save the space. meantime, for baby boy, should we let him stand and VV or
sit onto the potty?