At what age tu are too old to go to Neverland o that Peter come to tu ?

tu can never grow up unless tu want to. So if tu still believe with all your heart, tu can see peter and go to neverland no matter what your age is

the age when tu change mindset, from the one of a child to an adult

I believe 18 is the age where tu are too old to go to Neverland. However, tu can still be visited por Peter, as long as tu DO NOT close the window on him (in otherwise, doubt your childhood experiences with him, lose faith in him, etc.)