https://www.bbc.com/news/health-55863841
This is a typical situation when the cure (coronavirus measures) is worse than the disease.
Citation needed. The only thing I could find is this[1], which is just nonsense. It's probably similar to the much more sensible numbers from the UK, maybe a bit better since, so far, Germany hasn't had a lockdown as strict as the UK.
[1] https://www.meinbezirk.at/c-lokales/corona-krise-30-prozent-...
[German] https://www.zdf.de/nachrichten/panorama/corona-kinder-psychi...
In this matter lifting restrictions like Texas, Mississippi and other US states have done seems more reasonable.
In Denmark nearly everybody who is at risk has been vaccinated, but still the government hesitates to remove restrictions.