Is it really accurate to call it mandatory when exemptions have been relatively trivial to acquire and use if one desires to? People keep acting surprised that

Is it really accurate to call it mandatory when exemptions have been relatively trivial to acquire and use if one desires to? People keep acting surprised that other people would say no and also object to not having a choice. Then there's the immunocompromised people who react poorly to vaccines and programs such as this are trying to corral them into a one-size-fits-all mandatory vaccination program.