'Most vaccinated' place on earth cancels Christmas

For that goal wouldn't it make more sense to vaccinate only the risk populations like older people, overweight people and people with respiratory issues? That way you avoid promoting vaccine-resistant variants while protecting people that are likely to be hospitalized, hospitalizations are really low in younger people, and almost zero in kids. I think for example in Spain for all populations below 50 years old there has been more suicide deaths than Covid deaths since the pandemic started.

You could argue that it can still be good to take vaccines even if it's not to protect yourself, to reduce transmission, but seeing the recent examples of Singapore and Gibraltar with >90% vaccination rates and cases exploding that this hypothesis should be revised.

Also I haven't seen many studies evaluating the efficacy of vaccine that also take into account the seasonality of Covid waves, which makes me skeptic seeing the cases exploding as the cold weather arrives.