The point the person you are replying to is making is that to Europeans, checks are a thing that only exist in Hollywood movies.

It's difficult to imagine in a modern world, people or institutions writing or printing something on a piece of paper, and saying, "here, this is money".

Still a thing in France, at least as of last year.

Got stuck behind someone at the Carrefour (grocery store) paying with one. Ugh.

Still common in the UK. I know friends in Wales who can only pay by cheque because a two-signature policy applies to their bank account.

Exactly why it is not needed, the banking system supports transfers between banks in SEPA for free or very cheaply.

Some people/business will still ask for a cashier's check though.