If I have read the various requirements (UK and EU countries) correctly - it seems teenagers getting one jab won't count as vaccinated for EU travel (eg in France they won't have a vaccine passport so won't be able to to into restaurants, museums etc etc without a covid test from a pharmacy every few days) and they'll still have to have a waste of time PCR test on their return. Which means short visits to Europe are pretty much a write-off and it's not looking great for holidays abroad generally. This seems awfully unfair - that the one jab puts them in limbo.