I've booked us a few days in a city then a few days by the sea. 18 months ago my lovely friendly polite child turned into a rude and moody teenager, the other one is still okay. Last year the one who is quite moody walked ten metres ahead of us everywhere and didn't join in or smile or whatever else nice normal people do.
I felt upset and wished they were young again.
Any tips on how to survive this time?