We are Polish citizens, based in the UK, thinking about travel to Puerto Rico. Me and my wife we have B-1/B-2 Visa valid till 2021. We have two kids (4.5 and 2) who have passports but don't have visas.
Do we need to apply for visas for them?
I gathered that children under a certain age don't need to attend an interview, but do they need visas at all?