Do you have a citation for your "unsafe" claim? Ungrounded doesn't automatically mean unsafe (or, in the UK, illegal).
In the UK we have 3-pin plugs, but different appliances have different rules about grounding; class II double-insulated devices don't need to be grounded (afaik) and this link[1] talking about macbooks says:
> "The macbook is a class III appliance, meaning that it is powered by a safety extra-low voltage supply. The low voltage guarantees that coming to contact with energized parts poses no risk in normal circumstances. The actual appliance from a safety perspective isn't the macbook, but the power brick."
In the UK we have 3-pin plugs, but different appliances have different rules about grounding; class II double-insulated devices don't need to be grounded (afaik) and this link[1] talking about macbooks says:
> "The macbook is a class III appliance, meaning that it is powered by a safety extra-low voltage supply. The low voltage guarantees that coming to contact with energized parts poses no risk in normal circumstances. The actual appliance from a safety perspective isn't the macbook, but the power brick."
[1] https://electronics.stackexchange.com/a/355824