EU doesn't forbid including. The new law requires there to be an option without the adapter. If the manufacturer chooses so they can have an option with and without the adapter.

I can buy a laptop right now close to home and it comes with power adapter.

Except that it's literally not true and people are repeating it for some stupid reason, I assume you just never actually looked it up - laptops are specifically excluded from that regulation, and in fact Apple does bundle a power adapter with their laptops, just not on the cheapest models.