> As someone who also has two family names, I always dread questions for my "last name".

I feel the same about anything that doesn't ask about my middle name. I end up constantly see emails with 'Hi/Dear First-Name Middle-Name', which nobody calls me, but if you want my full name as written in my passport, it's got to be there somewhere.

It'd be much better if they instead asked for 'Legal name (what's written in your passport)' and 'Nickname (what you want us to call you)', although I suspect many would fill in an actual nickname in that second box and be mad that the service 'needs' that, or doesn't treat them with the proper respect, when you could just fill in Dr. Robert Smith there and it wouldn't matter in the slightest.

I've considered changing my name to a more simplified version with just two names, but I'm expecting it to be a hassle, and there's a social aspect to it, which I'm not sure I want to deal with. But with every day that passes, the sunk cost becomes bigger.