Its interesting to see people talking of the science behind mask wearing as being "crystal clear" and "well known", considering that according to the WHO ( the very organization that these people look up to) the science behind mask wearing is still inconclusive at best. Even the CDC if you are an American is not totally sure of the effectiveness of cloth masks which most of these people wear.

Which means that there is no science behind this level of religious mask wearing thereby making it political and nothing more. This person is teaching his/her child to shoutdown people who disagree with him politically , this sets a bad precedent for the future because people might be more confrontational if he tries to pull this as an adult.

Besides its funny when he/she says "live and let live" yet immediately turns around and lets the kid act this way. It means that in this persons mind "live and let live" only exists for people he/she agrees with politically.