It's not from a governmental perspective, it complicates everything whenever people change their name and tracking files between ministries becomes a nightmare.

Heck, I had a client from the next province over and that lady had to show me three pieces of ID before we found one where her last name matched her proof she got vaccinated and the only one that did match wasn't a legal piece of ID! She still had her late husband's name on one, the name of her new husband on another and her maiden name on the last one.