it's not like he was using them or selling them
also the kid in question doesn't go around rummaging through ppls clothes
what if he forgot about it and it was washed
It's still not good, despite all that you said.
This is not about someone using them or kid finding it, this is about morals. This is about not doing criminal stuff around a kid. He has no business getting those two involved in his business.
Bringing drugs into a house w a kid is a bad business indeed. Curious to see how he can redeem himself.