> the parents can always say no or the kids can learn quickly...
The parents need to spend a lot of time to counteract those evil forces and you cannot teach a kid to not like the amazing toy he/she is watching on TV. You can teach them that they can receive presents on specific date though.
TV is only one source of ads, YouTube, games, and other web/mobile resources are full of ads. I cannot get rid of all of them without creating creatures from another planet.
The parents need to spend a lot of time to counteract those evil forces and you cannot teach a kid to not like the amazing toy he/she is watching on TV. You can teach them that they can receive presents on specific date though.