[baking]

People develop schizophrenia in their early twenties. Once it develops, you have it for life. The evidence is that cannabis use at an early age makes people who are susceptible to schizophrenia unable to control it and it fucks up the rest of their life. Some people smoke a ton of pot and never develop schizophrenia. Some people who are susceptible to schizophrenia and wait until their late 20's to smoke pot or use it minimally before then are able to avoid schizophrenia.

This is a perfectly valid reason to avoid heavy cannabis use before the age of 25.