I mentioned that it was a stereotype — perhaps unfairly applied, but still applied. The connection, such as it is, has to do with intelligence level. The person who reads is also smart enough and disciplined enough to eat and exercise correctly.
Yes, it is unfair, but still applied by many people socially and professionally.
I think you’re just throwing stuff at the wall and hoping something sticks, the luxury thing was junk and now you’re scrambling for a point. Sure smarter people tend to read, if nothing else reading tends to make you smarter, but that doesn’t necessarily mean they’re eat and exercise correctly. All of these things have certain addictive aspects (mostly because they’re pleasurable at least to some people), and that addictive aspect can cause troubles. If one is addicted to reading one might be smart enough to eat properly and exercise but still not bother to do it, smart people can make dumb decisions.
It’s not unfair, it’s made up. You simply are not putting forth even remotely valid points, not in stereotype or reality.