This device, like almost every other Apple device, is not meant to be shared regularly. It's also highly personal and holds a lot of sensitive data that you probably don't want just anyone accessing with zero supervision.
If you really want to share it, I suppose you can disable Optic ID and purchase a different strap/light seal separately, you're not required to purchase a new AVP just to get those components. They are also interchangeable so if you wanted to share it with someone just put on their strap/seal. It also has guest mode, which we know very little about but presumably it'll allow you to let others play with it for short periods of time.