Wearing masks to keep yourself from contracting COVID is nothing more than public health theater, because it doesn't keep the COVID spores from reaching you, it keeps them from getting out if you're in the contagious stage and don't know it. Still, during the worst parts of the pandemic I made sure to wear a mask in public, not because it made me safer but because it made other people feel safer. I'm retired, and I live in a small city that's now down to about 8,000 people, compared to the 20,000 here when it was incorporated near the end of the 19th century and I don't know how many, if any cases there were here. The same thing goes for children; it may keep them safe, but if it helps keep their parents from worrying too much, it's a small price to pay, and I congratulate you for insisting that your children wore masks even though you knew they didn't help. If nothing else, it calmed the fears of the other children's parents, and that's not a bad thing.