I think the reason is they know they'll lose the market share if they don't force them. Most people know that they are addictive and "bad for you" so many peopl

I think the reason is they know they'll lose the market share if they don't force them. Most people know that they are addictive and "bad for you" so many people would not opt in to them. But if they're almost forced, they will succumb to the addiction.