Don't worry too much about it! My son always wanted to go to bed for the night at 11-12, and would not go down earlier. So we were flexible and worked with his schedule. Over the last week, he's self adjusted to go to bed between 9 and 9:30 and is now up at 7:30 with only one wakeup at night.
So just be patient- it will come! He didn't require any sort of sleep training. He just changed his bedtime when he was ready.
Re: If you have a little night owl