Girls, hello! Tell me when you changed your crib for a more adult one?

Girls, hello! Tell me when you changed your crib for a more adult one? I want to change mine, my baby is 1.5 years old, is it too early? I'm doubting it. He just crawls out of the baby crib and I'm afraid he might fall, I don't want to take down the wall, it doesn't look very aesthetically pleasing.