In addition to the reasons given in peer comments, minimising exposure helps to protect other people. Personally that's my main motivation to stay in and take

In addition to the reasons given in peer comments, minimising exposure helps to protect other people. Personally that's my main motivation to stay in and take care. Not to protect myself, but to protect other people. Including people I know and care about personally, and people I don't know and never will. Some of those other people will die or live with a horrible disability which may be lifelong, if me and people like me don't collectively adopt that stance. That's a great reason for me to stay in, be careful, and minimise exposure! So I do it voluntarily and gladly, and wish others would make the same decision, and when they can't for reasons outside their control, wish that they could if they want to.