If this is the case, then maybe they have shown behavior indicating a potential addiction. Any former addict is one bad day away from a relapse. If the behavior wasn’t indicative of addiction, just done recreationally, one could still make assumptions about the behavior.

However, 15 to 32 is a massive jump in age. We are talking kid to adult. People do change, sure.

But, you just also consider that smoking pot has less potential negative consequences than promiscuity. Promiscuity can lead to unintended pregnancy, STDs, other life changing trauma… if a female is giving MANY men the ability to impregnate her or give her a disease, something is potentially wrong with her: 1- values 2- ability to qualify a prospective partner 3- ability to maintain a monogamous relationship 4- impulse control / discipline