re: UK trip

I would suggest 2 and a half weeks, 10 days in England, Scotland and 7 days in Ireland. We are going next month late July and early August to just UK for two weeks if we don't have to quarantine. We are older and both vaccinated.
Keeping our fingers crossed for next month.
I can guarantee that no matter how long or where you go,
you will want to go back and see more down the road.