Publishing on the play store now requires giving out personal identity documents (like drivers license or passport), full legal name/phone number/email/tax ID/etc., as well as your private signing keys.
I am not an android developer, and privacy wise I don't try to put the toothpaste back into the tube. I would have been fine with everything except the last one. What happens when there is a data breach on Google?
I'm surprised this wasn't already the case. You're distributing potentially malicious code to users' devices, and they expect a base level of safety from the Play Store. You're free to publish elsewhere, so it's not like Apple's policy.