I am lucky. My 保母 is very nice. Everyday, she fasten the seat belts for my 2 kids (K1 and K2). And then, the driver 開車.
The school bus may late for 5-10 mins frequently. But it is ok for me la. My kids are waiting for the school bus in the dining room (and have breakfast). Everyday, when the school bus comes, my kids start to ware shoes and go out. The bus will wait for about 1 mins for my kids. 保母 never complain.