Ask me. My first name is not the name I use, because my parents in their wisdom preferred my middle name, but liked the 'flow' of the two names the other way round.
It has caused me ENDLESS problems, we even had to change bank account, and it took 3 years to persuade the bank to accept cheques in my name. Every time I go to an interview (job etc) they start off with my first name and I have to say 'Oh, well, actually my name is ....' which never gets things off to a good start.
I had nothing to do with the decision.