Levistus's_Leviathan
5e Freelancer
I can attest to this. My mother is an elementary school music teacher, and started teaching music in elementary schools towards the beginning of the pandemic. She teaches around a dozen classes in her school district and has had very little problems getting kids to wear masks at school.From what I've seen, kids have had darn little problem adjusting to masks. I am sure there are a couple, but by and large, kids do just fine.
They can definitely handle it. In some cases, they can do so better than many adults, as kids are often more adaptable to new circumstances.