Are the school policies all that porous? I don't have time to look into this too deeply at the moment, but take a look at this: https://www.cdc.gov/nchs/fastat

Are the school policies all that porous? I don't have time to look into this too deeply at the moment, but take a look at this: https://www.cdc.gov/nchs/fastats/immunize.htm https://www.cdc.gov/nchs/fastats/immunize.htm This shows that a very high percentages of children are vaccinated by the time they are 2 years old (e.g., 90% for MMR). Too me, this strongly indicates that those policies aren't very porous at all. Are the covid vaccine mandates any less porous, especially given that only about 60 to 70% of adults are vaccinated, even though pretty much all adults could be vaccinated by now. The old vaccines were new at some point too, and I would wager that development and testing regimes weren't as robust as they are now. I don't see any good reason to trust the new vaccines any less. Finally, I didn't say the policies are equivalent in every way, but I still contend that they are fundamentally similar with regard to mandates.