This is somewhat available on TripAdvisor if you search for the airport itself by name, e.g. https://www.tripadvisor.ca/Airport-g187337-qFRA-Frankfurt_Hesse.htm

This is somewhat available on TripAdvisor if you search for the airport itself by name, e.g. https://www.tripadvisor.ca/Airport-g187337-qFRA-Frankfurt_Hesse.html https://www.tripadvisor.ca/Airport-g187337-qFRA-Frankfurt_He... The airport itself is not gathering ratings, but the restaurants and activities inside it are, and if there's a significant children's playground, it should show up as a rateable attraction under "Things to Do".