I wrote a blog post about this.

I don't require vaccination, for the reason you stated: it doesn't prevent transmission (nor does it prevent mutation) and how much it "prevents" or reduces infection is still being determined (it's definitely not even close to the hopeful number they initially gave us).

And since there's no long-term data on its safety, i.e. complications or contraindications, and there won't be for 5 to 10 years, it's a risk that each person has to consider for themselves. I'm in no place to try to pressure or enforce adherence to something that could cause someone a lifelong complication or even death.

For now, I require a mask. I feel that's a reasonably safe risk reduction method. In the very least, I'm not subjected to someone's bad breath.