Cite? I ask because you're always wrong when you say things without a citation.
This is pretty much common knowledge at this point. Other than to Branch Covidians.
Conclusion: COVID-19 and Influenza may share similar clinical features. According to our findings, however, we believe that COVID-19 disease has a milder clinical and laboratory course than Influenza in children.
https://pubmed.ncbi.nlm.nih.gov/34107134/