Children would always be confused if they are asked to decide where they want to stay. Though as life partners if you are not jelling well, it becomes your duty not to hurt your children. Hence, it is good that you talk with a child custody lawyer Singapore and see what best plan would work out for your children. If you have not become enemies yet and do not think a divorce would make you as enemies, then it is possible that you both could spend some time with children during weekends. The same could be mentioned in the document before you both sign on.