I don't understand what "VPN providers move onto VPS to avoid" means? Can you clarify?
I can't see how they could apply it to VPS providers without meaning AWS, GCP, Digital Ocean, etc would all start having to do age verification checks. Can't imagine here would not be a massive push back against that.
By VPS, I mean a generic compute instance that can run whatever you want. Like a Linux instance. I'm not sure what you mean by "VPN providers offer VPS as a substitute" in that context.
Paying by card isn't enough to verify age. They'd have to specifically verify via passport or other ID.
I can't see how they could apply it to VPS providers without meaning AWS, GCP, Digital Ocean, etc would all start having to do age verification checks. Can't imagine here would not be a massive push back against that.