Advice please: It now looks like for unavoidable reasons my 13yr old is going to have an overstay. She's In half thai but on UK paperwork. In the past they've never enforced her needing a visa, and have always accepted her UK birth cert to show dad is Thaui. This is the first time I got her a tourist visa due to not wanting any extra hassle boarding to TL. Are they likely to enforce overstay rules for a child on exit? Does anyone know the actual rules?