Because the amounts can vary based on the number of servings, but the method doesn’t.

Dropped in on a 12 foot vert ramp, frontside mute, hung my truck on the coping and hit the bottom of the ramp face first. Broke my nose, knocked myself out and woke up in hospital.

Nobody said they were ok with young people vaping. The point people are making is that communication and discipline, both things that require time and skill, would be a better, less invasive approach.