Re: a Paradox
Again, issues like these (texting, dating, trading phone numbers etc) - they're all related to upbringing. If you raise your children right from the start with the morality that you'd like to instill then there shouldnt be problems like these.
If you pound them over the head, threaten, punish, suffocate with stifling rules then of course they'll rebel when the hormones kick in. But raise them with love, give them appropriate freedoms when they've earned it by being responsible, set a good example and you wont have to worry as much when you send them out into the world.