How much does an unwashed cloth or reused disposable mask reduce transmission? This is what most people wear.
The answer to that is enough for a number of people who are better qualified than you to advise that it needs to be mandated and it’s the law.
You don’t get to pick and choose what laws apply to you because of a matter of personal convenience.
Masks help protect others.
I on the other hand have had an injection with a risk, albeit minute, of serious life threatening side effects, which reduces transmission risk to other people by a significant amount.
The risk is small. Very, very small and there are higher risks with other jabs - which include the flu vaccine. The transmission reduction is between 36 - 50% depending on what source you read. That means that in the best case scenario you still potentially could infect quite a lot of people.
Again, masks help protect others.
How does that make me selfish? If that’s the best you can do in terms of an argument, I reckon I’ve been pretty unselfish really.
Well done on getting the vaccine - but let’s be frank its the least of what you could do. You’re being selfish because the guidance states you still need to wear a mask; but because that offends you personally - I am assuming from what you’ve said that you don't wear one.
This means that you still present a risk - therefore you are incredibly selfish.