While tragic, the numbers are so close to zero they are statistically zero.
Over 3 years, CDC has logged 650 total (~216 per year)[1] covid-related deaths for the 0-4 age group. 5-18 years is a grand total of 997 (~332 per year)[1].
These numbers rival fatalities that we don't even blink an eye at, such as automotive related deaths[2].
WHO statistics indicate the US loses around 20,000 - 30,000 children under the age of 5 every year[3].
None of this is to say child covid related deaths are not tragic - of course they are. But the numbers are so small that it makes little sense to worry about them.