Well, not just drugs-children are more likely to experience hallucinations even without drugs.
I still have vivid memories of experiencing what (in hindsight) I realise were hypnopompic hallucinations, around the age of 6 or 7. I wasn’t taking any regular medications, that I can remember. But, I grew out of it, as kids usually do.
A fun aside here: experiments in which people who’ve taken hallucinogens are placed in brain scanners reveal activation patterns which look an awful lot like what we see when we put small children in brain scanners, and this somewhat accords with the neurogenesis vs pathway pruning see-saw model of brain development.
I’ll say personally my experiences with psychedelics brought back memories of childhood - how I engaged with the world, how my mind would go off down different paths, the intensity of focus - so, you’re probably not far off here.
I always said psychedelics reduce you to a child, with reduce having no negative connotation, just a word that describes the experience. It's like sending your perception back in time in some ways, while retaining some matured aspects.
I still have vivid memories of experiencing what (in hindsight) I realise were hypnopompic hallucinations, around the age of 6 or 7. I wasn’t taking any regular medications, that I can remember. But, I grew out of it, as kids usually do.