Oh yeah all my old apps got taken down by Google because apparently, they don't like that I don't update my apps for no reason whatsoever, even though they were offline games...
Hackers and scammers get more advanced. Vulnerabilities are discovered with time.
Users expect more security today than 10 years ago.
For Google & device manufacturers to be able to guarantee that level of security, they need to keep their store updated. And the apps on there shouldn't be using outdated insecure APIs.
If you're not able to keep up with that, then you shouldn't have any expectation of getting new downloads on their platform.