All advertisers should be obliged to label their online advertising with a uniform, prominent logo.
A major publicity campaign should inform children (and adult) what the logo is and what it means.
The most recent research shows that children cannot distinguish between advertising and content online. Neither do they recognise or understand the current Online Behavioural Advertising triangular logo. If children do not know that data is being collected from them or that it is being used to serve them targeted adverts then they cannot control their data.