Maybe?

I have a theory, what if time actually does go by... u may be thinking "you're crazy" but let's think about it so let's say Peter Pan is 12 and 1 seconde goes door for everyday here on earth it would take 60 days just to reach a full minuut now × 365 (a year) door 86400 (the time of seconden in a dag that would be equal to 31536000 (the time of seconden in a year) so now × 31536000 door 60 and u would get 1892160000 (how many seconden in a jaar for Neverland Time) so in 50 Never land years that would be equal to 94608000000 years in Earth Time so peter would still be 12 in 50 of our years, so what I'm meaning about this is Peter does age just time is way slower than the time that we have.

Welp that's just my theory!