Laws don't do anything. Experiments have proven that time and time again the only thing that changes drivers' behaviour is infrastructure. Have you ever seen a speed sign change, but nobody slows down because the road is so wide they feel it doesn't matter?

Narrow roads. Raise crosswalks. Grade separated bike paths. These are the things that actually keep people safe. Something something the Netherlands.

There is one exception: I do think PEVs should be limited to 25-30km/h. As someone with an ebike I know peoe vastly overestimate their own handling abilities, and it's very bad at speeds above that. But because that's a law for the manufacturer, it means that people don't have to do any thinking to comply with it.