You can view this from two perspectives: Perspective 1: Parents and teenagers don't want the government to take decisions on where they spend their time. Perspective 2: Government wants its citizens to spend time on improving the nation. Both things are reasonable, it only matters where you see them from.

I think it's a fallacy to assume limiting gaming is going to somehow make them more productive. They'll use that time to watch TV or hang out with their friends. Neither of those things are necessarily productive for either the nation itself nor for their future. Besides, like with any other form of censorship, there's always going to be a way around it, and most of them are pretty tech savvy anyways.

3 hours a week is tough. Of course, more time could have been given. But the fact that certain restrictions in relation to teenagers should be - that's for sure. Unfortunately, teenagers are generally unable to realize the importance of learning for the future. They live for the needs of the moment.

Teenagers are addicted to video games more easily, I believe the restriction would lead the correct direction in the growth of the majority teenagers, but AFAIK 3 hrs per week is a little bit tough.

No, this is really, really stupid. In general, you must educate the new generation correctly and explain many things. Now the gaming industry is unrealistically developed and offers a lot of things, from VR games, and technologies, games and entire communities. You can study in detail the assortment of one of the stores https://www.nextgen-gaming.co.uk/ to understand the scale. I would not restrict children from this