“The kids didn’t care” because they are used to following backwards rules from grown ups.
It truly is not a big deal to wear a mask, as long as you are choosing it for yourself. If somebody is forcing you, it feels extremely invasive.
The mandate folks should have spent their time cultivating and presenting an actually convincing argument.
For example I always masked indoors but thought the idea that my 3 year old needs to mask at an outdoor playground to be preposterous.