Already this season 92 kids died of flu in the us. should we vaccinate all remaining kids so they won't catch flu when more coronavirus arrives here?

Yes flu vaccine: for sure. Although the flu vaccine does nothing for Coronavirus. Helping prevent flu is an extremely good idea.

Viruses: Failure to vaccinate places all unvaccinated people at risk. Yes, all people should have yearly flu shot. Hopefully by next flu season there will be a viable coronavirus shot available. It may need to be given separately or combined with the flu shot. We shall see.

Viral infections: Yes, it is potentially very beneficial to get an influenza vaccine. However, the particular types of flu covered by the vaccine will not include coverage for COVID-19.