This story is about how little the UK trusts adults to be around children. Allready, the UK has a system in place where you have to register and be vetted in order to be in contact with children (for example to drive them to sports events). Now they want a much larger system of vetting for people who visit schools. Vetting costs GBP 64,- and will include rumors and hearsay about your behavior.
The implication is that adults are somehow out to get children, and children simply can’t be in contact with them without the adult having sinister ulterior motives. The UK needs to get it’s shit together.