Game developer looped all buildings that can be boosted, together. In the past they could individually boost. If one were upgrading you didn't boost it. Now you pay even though the building is useless. It is only a question of pennies but considering the amount of children and millions of players who do this, it seems deceptive and akin to a hidden fee. They never warn the player when using the boost. Is this legal?
Your question is hard to understand.
You need to be more specific.