Children do not need to be vaccinated because they do not become sick from COVID-19.
Children have much milder symptoms and are less likely to be hospitalized. But since children can become infected and transmit the virus, they can serve as an ongoing source of transmission. Everything seems to be changing with the new variants, which lead to a much higher viral load, and that includes children. It is true that children are not dying at the same rate as we are seeing in older adults. But children are going to grow up to be adults. We want to protect them as soon as possible. In addition, we are now seeing some of the ongoing consequences of COVID. Not only deaths.
Additionally, children are part of the community, or the “herd.” It will be harder to get back to some normalcy if a large proportion of the population remains unvaccinated.