The CDC and the American Academy of Pediatricians has both said very clearly that there is no evidence linking masks with developmental delays or language deficits.

https://www.healthychildren.org/English/health-issues/condit...

https://www.cdc.gov/coronavirus/2019-ncov/science/science-br... "The limited available data indicate no clear evidence that masking impairs emotional or language development in children."

But if you're asking if I'm ashamed of the CDC's pandemic response? A lot of scientists and medical professionals have complained about the CDC. Yes. They have completely botched the messaging on both masks and vaccines. There should have been a simple statement in March 2020: wear a mask. That's it. Instead, they made the issue so incredibly complicated and polarized that almost a million people died.