[was_boring]

Most likely depends on what you consider professional. Turns out the qualifications for watching other people’s children are almost enterally age base. Even then there’s wiggle room for a competence factor that is deemed by the guardian and confirmed by the court.

For example, there is no lower age a child can be left alone in my state, and no requirements for leaving with someone else — except that the child or person can reasonably recognize danger and avoid it.