I was surprised how early Apple released the public betas of iOS13, iPadOS, and Catalina. I have installed the developer betas on several of my own devices, but none of my key devices. While I'm genuinely enthusiastic with many of the changes and upgrades this year, I think we are a little early in the beta process, as I am still experiencing several crashes and inconsistencies.
I know Apple warns you about this when you sign up for the public beta, but I would like to reaffirm: Do not load these early public betas on any device you use to pay for your shoes. That is all.