If it's an important thing to know, you learn it. When Myles asked me that question, I never thought about why his mom and I chose to use a 'y'. We chose the name Myles, because it means soldier, and my wife said it sounded nice with my surname. Haven't the foggiest. But as I listened to him, I understood.
Names are important.
Names are more than what you are called. Names are who you are. And if you don't let people know who you are, they might call you anything. They will never get it right. Relationships are the same.