My point wasn't that obesity is a reason not to sail, (though fat sailors seem to be rare around here), my point is that the latest generations are spending a huge amount of their "free time" on-line, instead of any of the outdoor activities our generation(s) learned to enjoy from our youth.
The internet has had a huge impact on increasing waistlines and decreasing physical activities.
When we were kids, we went outside every day after school.
Todays kids aren't even allowed outside without adult supervision, from a fear of pedophiles. So, there is a lot more support for kids going on-line vs. outside.
And if you're not used to enjoying any outdoor activities, where was that initial exposure to sailing going to happen?