I have always felt that growing up is a culmination of time and life experiences. Some alters are frozen in time while others claim to have sliders...idk.

I feel alters that are out more then others mature while the ones that present less mature slowly. Our mains that are mature from 20's to 30's while the youngers stay youger because they are in the most.

I only say this because when I was 8...we had no 20-30 year olds in here....now we do.