Earlier quoted context omitted.
I'm concerned about these laws and their implications for privacy, but as a parent, I'm not sure what you mean to say parents should parent. How? What should the parent do? How would you recommend a parent protect a 13 year old who spends their time in their room and out with their friends on their phones?
I have a different solution to your other repliers: do nothing, your kid will be fine in all likelihood. If you must satisfy the politician's syllogism, set some time limits and make them touch grass. But a thirteen year old oughtn't be parented like a three year old.
Isis did manage to recruit young men in the UK via telegram (OK, you just said “in all likelihood“, maybe I’m tossing you the exception that proves the rule)