If you are at least 18 years old, you already fulfill the second prerequisite for au pairs. You should also be unmarried and childless. Since little ones can keep you on your toes, good physical health is also a requirement for an au pair stay. In addition, only non-smokers are accepted into the programmes, because au pairs are not only supervisors, but also role models for their host children.
Driving kids to school, picking them up from after school activities or taking them to playdates with other children: Au pairs often travel by car. Therefore, you should already have a valid driving license. If not - no problem! You can still apply and get your license during the application process.
Another requirement for au pairs going abroad is that they need to have a good enough command of the English language to be able to communicate with their host family right from the start. Perfect command of English is not necessary, an intermediate level is sufficient.