There is no standard in this industry bc the parents have a variety of jobs with a variety of requirements. Personally, I receive paid holidays and OT pay if I happen to work, which only happens if I’m traveling with the family. Maybe write an email so that you can formulate the words properly and get someone to help you edit the email, as well as to not put them on the spot. It doesn’t hurt to ask. Some positions are more professional than others and you work your way up to that.