I have 4 kids aged 7, 6, 3 and 2. All of them are Norwegian citizens (so is there mum). When we got advised that only the youngest two would be vaccinated, we investigated what was happening in Norway. In the UK, the 'at-risk' groups are vaccinated, in Norway, everyone is vaccinated. So, when we were over at Christmas we had all 4 vaccinated, plus there mum and the Doctor kindly vaccinated me as well for £15.
Norway's health system is miles ahead of the UK. If every Norwegian is getting a jag, I'd say it's ok.
Hope this helps.