Many people seem to have taken the "kids are less impacted when infected" and converted it to a "kids can't get infected" or "kids don't spread the virus" conclusion.
The provincial government where I live was recently excoriated for coming up with one of the weakest back-to-school plans in the country, which effectively suggested the status quo with next to no supports or funding for schools to deal with COVID-19 unless and until outbreaks start occurring.
From what I can tell based on the policy and subsequent public statements made by the officials, they seemed to have been operating under the assumption that kids can't be infected or are less likely to be infected with COVID-19.
The lack of critical thinking on display when it comes to this virus, especially by policymakers, is one of the most disturbing facets of this pandemic. I really get the impression that many are not putting in an effort to maintain even a baseline level of up to date knowledge on this evolving situation. It's distressing when you see people espousing opinion based on outdated information from 4 months ago.