Kids get sick all the time man. Colds, flus, everything. It's pretty normal for a kid to get sick. A cold is not dangerous to most people but some can end up in a hospital. I would prefer no child ever get sick, but that's not going to happen.
You just wrote a statistic saying 1900 children hospitalized. Now you write one with 200k children hospitalized.
You write a statistic that 1 child died of the flu. Using 2020 flu statistics doesn't make sense because the flu supposidely vanished during 2020. We had almost no flu in Poland either in 2020 but already like 800k cases in 2021.
CDC government shows 372 for 0-17 for 2018-2019, a "normal year" so to speak..
https://www.cdc.gov/flu/about/burden/2018-2019.html
"In a series of preprints published on medRxiv1–3, a team of researchers picked through all hospital admissions and deaths reported for people younger than 18 in England. The studies found that COVID-19 caused 25 deaths in that age group between March 2020 and February 2021.
About half of those deaths were in individuals with an underlying complex disability with high health-care needs, such as tube feeding or assistance with breathing."
https://www.nature.com/articles/d41586-021-01897-w
"Of 3,105 deaths from all causes among the 12 million or so people under 18 in England between March 2020 and February 2021, 25 were attributable to COVID-19 — a rate of about 2 for every million people in this age range."
So the mortality, statistically, is quite low in children. 1 in 500k in the UK.