I'm sorry but I would have to say: no way!

I think it's completely unacceptable. I don't buy into the whole "they would leave school grounds" thing. I'm sorry, but they are at school and should remain on school grounds. This was happening at my DS1's old school and I didn't agree with it at all. I think it's a poor society when teachers aren't allowed to discipline students under their care for fear of repercussions from parents/carers/society in general.

Besides all that, um isn't smoking supposed to be "bad for your health"????? Should we also promote safe drinking for those students who like to imbibe at lunch?

...... I'll get off my high-horse now!