I am from Canada and when renting from Hetzner was never asked about personal ID. Maybe because I started few years ago. Never knew about Scaleway. Looked at their website - prices for bare metal seem to be higher than in Hetzner
The ID checks are random. When I registered a while back I had to provide mine, so I aborted the registration. I tried again recently and was not asked for one.
Yes but hetzner sell a lot of older hardware for bargain basement prices. It's their thing. They're more of a traditional hoster.
Scaleway's compute is more like Amazon EC2.