You must have different advice and research in the USA from Europe
with regards to how much protection the vaccinations give.
Our official Federal Government advise is to stay home, distance, mask; vaccinated or not.
Vaccine effectiveness is 95% meaning 5 in a 1000 could contract the virus if put in a situation of exposure. But symptoms will be less severe. Many think fully 1/3 of all Americans have been infected over the last 12 months, most without symptoms.
So the question would be, if you are in the 5 in a thousand group, what are the odds of you being exposed on a two week trip? And if you are exposed, what are the odds of you displaying any symptoms? Or needing hospitalization? I think I heard that one vaccinated person actually died of COVID, so that's one in 30 million so far? I don't have the answers. But at what point do you get on with life? I don't have a universal answer for that either. What i see as infinitesimal, you might see otherwise. If you feel a need to stay locked down, no one has the right to question that.