There is no compromise on children. Some people want them, some don't. This is one of the biggest sources of relationship strife and needs compatibility quickly or folks should agree to part and stop wasting time.
I do agree that people can waste time if a person says they "don't want children right now," but really mean that they "don't want children ever." In either case, there is no harm to clarify this before going right to breaking up over hesitations.