Gamification is not an unfair practice. Gambling is not an unfair practice.

This is not what "unfair" means.

The EU wants to ban gamification because it sees it as addictive. So this is the nanny state that thinks people are children.

Gamification is a practice to obscure pricing, which makes it unfair.

And of course, the state should do that. That's the whole point of a state - to use its power as a weapon of the people against capitalist abuses.