You're incredibly selfishly increasing the risk to everyone else around you, but I get it. I was in the same camp just a few days ago.
Having had a compromised immune system I don't wish it on anyone. But hey maybe if more people were casual about these things then they too can learn the hard way.
I don't want you to be afraid - I want you to minimize the risk that you get coronavirus and become another infection vector, endangering the at-risk populations around you.
I want you to do that because it is the socially responsible thing to do, and it will decrease the chance of someone who is far more at risk of serious complications from the disease catching it.