It's right

Makes sense to me to offer boosters (or 3rd shot) in the same order as the first dose was rolled out, with the elderly and immuno-compromised first. The rest of us can wait a bit until the science shows it's time for the younger, healthier folks.

For me I'm happy to wait a while longer, in hopes that my brand (Moderna) might offer a 3rd shot of a slightly tweaked vaccine to combat the newer strains better. Seems to be a balancing act. I watch what the doctors say pretty closely, so I know how confident I can be in my safety to gather with family members who are too young to be vaccinated -- I'm still being super careful around all people, vaccinated or not.