The performance problem is not screen time in general. It is two specific hours, the hour before sleep and the hour after a bad performance. Almost all of the damage happens in those two windows and almost none of it is solved by a blanket daily limit.

The hour before sleep

This is the one with the clearest effect. A phone in the bedroom costs a young athlete somewhere between forty minutes and two hours of sleep a night, and at fifteen that is the difference between adequate and not.

The fix that works is boring and physical. The phone charges downstairs. Not on silent, not face down, downstairs. Buy an alarm clock.

Every other approach relies on a tired teenager exercising judgement at eleven at night, which is not a plan.

The hour afterwards

A young performer who has just had a bad day, sitting alone with a phone, will do two things. They will look at what everyone else did, and they will read the group chat. Neither helps, and both arrive at the exact moment they have the least resilience.

This one cannot be fixed with a rule. It is fixed by there being something else to do for that hour. Food, a lift home with the radio on, other people. The point is occupancy, not restriction.

Selection days

Squad announcements now happen in group chats and on club social accounts, which means your child may find out they have been left out while sitting in a room with their friends. It is worth knowing that is how it works now, because parents often assume there was a phone call.

What does not work

Confiscation as punishment, which turns the phone into the prize. Blanket daily limits, which get gamed within a fortnight. Arguments framed around wasted time, because to a fifteen year old their phone is where their friendships live, and treating it as worthless is the fastest way to lose the argument.

What to say

Frame it around sleep and around the performance, because both are things they actually care about. This is about you being fresh on Saturday is an argument a young athlete will engage with. This is about you being on your phone too much is not.