I believe that no vaccinations should be utterly mandatory, but exceptions should be restricted for only the most dire of reasons, such as a medical exemptions. Currently, the option to opt out of vaccinations is, as I have seen other people say, removing the power of herd immunity and is endangering those who require this herd immunity, such as those with weak immune systems, medical problems, and other health deficiencies that prevent themselves from receiving these vaccines. That said, I also recognize the idea of freedom that many people enjoy in being able to decline vaccines. I believe that, although these freedoms are very nice to have, they cannot be kept at the cost of herd immunity and the endangerment of the society.
Please tell me what you think - I am open to other arguments and opinions.