You may as well try to take pizza from a dog.
You can do it, if you're standing right there and the dog is very afraid of you. But turn your back, and that pooch will indulge in an "Afternoon Delight".
"Has US abstinence policy failed?"
"Critics of abstinence programmes say they do not cut teen pregnancy rates.
"US lawmakers are investigating whether to cut government funding for health education programmes that promote sexual abstinence until marriage."
It might be a lot easier to promote abstinence after marriage.
Arf