It's not hard to find the science backing my claims. As for why doctors don't mask, they're humans too, and just as susceptible to propaganda and competing forces like wanting to "return to normal" or simply having kids in school and assuming getting them to mask is too tall of an order (frankly, it is imo).

Here's a Canadian researcher who still masks and explains how the many 'mistakes' were made in order to convince people to throw caution to the wind:

https://www.youtube.com/watch?v=ZCft7qu1Iv4

For the US version, this is a decent timeline of events:

https://www.thegauntlet.news/p/how-the-press-manufactured-co...

The best part was after that extended disinformation campaign, lawmakers asked people what they wanted to do, then told them what they wanted to hear:

https://web.archive.org/web/20240802024326/https://docs.hous...

But that didn't make the threat go away. People just pretended that it did. Group psychology is weird like that. Further compounding matters is the fact that neverending COVID reinfections impacts the part of the brain responsible for executive function, making it that much easier for people to not care. The more common and palatable term is "brain fog." Toxoplasmosis has a similar known reinforcing effect.