I don't think anyone on here knows the OP personally, so no one is any position to be commenting on the OP's morals or parenting. She was asking a question on a scenario which was answered in the first response. No need for any further self righteous comments or opinions on morality, IMO. Just saying
Regardless, I don't think you should do what you proposed because of the potential consequences. As for the name change talk, I used to work as a TA and we were beyond adamant to people booking flights about spelling their names and using their full proper names (no you can't use Jim, it has to be James). You wouldn't believe how many people, even after we emphasized this, would still give us the wrong or incomplete names. And those people had to pay change fees too.