The Nordic countries all have bank-backed apps for instant transfers from a checking account indexed by phone numbers. It basically replaces every peer to peer transaction that would be cash in other countries (paying back a friend, buying something at a flea market, chipping in for a gift at the office...)
In Finland, bank-backed apps became less popular (and some even closed down), and MobilePay[1] became the most common way to send money around. I believe it's very similar to Venmo.
First I thought it could make sense considering the territories have some differences in taxes on imports. But in that case, why is Åland missing then?
Perhaps he is thinking of how marriage does not change your last name, but rather gives you an extra, optional last name. [1] The French ID card has two last name fields!
Err. It still does by default change your name (if you're a woman). But you can ask and keep your 'maiden' (ugh) name or have both. It gets a bit trickier for kids' family names...