I am not high risk by most standards, but as male, over 50, and A+ blood group I have aspects that point to a higher risk of serious problems with getting COVID. Having seen two friend suffer for many months with "long COVID" (one 60-ish, one about 28) I don't really want to go down that path.
So far in my life I have had vaccines for (at least) measles, mumps, TB (I think, at least was tested if I needed it), flu, yellow fever, typhoid, hepatitis A, hepatitis B, and rabies. In all cases there is some risk of side-effects, but rationally you get vaccinated if the risk of the disease is higher than the risk of side-effects.
Sadly COVID is not going away, it will be doing the rounds for months if not years to come, so while I might just feel crap for a few day, I might end up with life-long crippling effects from the virus as tens of thousands already are facing.