Yes, data shows that the infection fatality rate is very low for children.

Adding to that, evidence suggests that the vast majority (65% - 95%) of infections in children are asymptomatic [1].

Overall this implies that many children have or will obtain naturally acquired immunity.

[1] Estimating the asymptomatic proportion of SARS-CoV-2 infection in the general population: Analysis of nationwide serosurvey data in the Netherlands https://link.springer.com/article/10.1007/s10654-021-00768-y