Sweden has a national ID system, your address is centrally managed at the tax office, so you can get bills/invoices and the only thing a company needs is your national ID (which is your date of birth + 4 numbers)

There are downsides in my opinion, like that my address/date of birth/age/living status is /very/ public.

Googling my name brings you to: https://www.hitta.se/jan+martin+harris+harasym/malm%C3%B6/pe...