It's also very well established that cannabis can cause psychosis[1] or depersonalization disorder[2]. Most conversations around cannabis risks usually just reference teens but that's just because there is a strong link between early teen cannabis psychosis and schizophrenia.

My understanding is adults over 30, while way less likely to develop schizophrenia are not immune to transient cannabis induced psychosis or DPDR,

1. https://www.psychiatrictimes.com/view/cannabis-induced-psych...

2. https://psychiatryonline.org/doi/full/10.1176/appi.ajp-rj.20...