If folks liked being overweight, there would be no endless reams of Jenny Craig, Lite and Easy etc ads on the teev, with a billion dollar industry behind them.
The overweight folks eventually become resigned to it and give up - look at Magda Zubanski lately - huge Jenny disciple and student for a while, but is now as big as she ever was...
It becomes too hard a fight, and the effort to lose the weight or to keep slim can be daunting - going for a run, riding a bike etc. Even a walk at a very fast pace - but folks wander along in slow-motion.
The reality is our lifestyles have changed a lot since I was a kid (I'm 53).
There was next to zero takeaway food, very little food was really processed, or even packaged. We lived on sausages with mashed potatoes and veggies, or lamb chops with home made chips and veggies. Dessert was the occasional trifle or pudding mum made, or weetbix, or toast or fruit salad we had to make. There was no soft drink - water or milk, or occasionally cordial.
There was no technology to sit and watch/play - only tv if you even had one, and probably black and white for most kids..
Kids rode bikes everywhere or walked - now you see virtually empty streets.
Adults these days are not much better - the takeaway breakfast market for eg; booming now. Things like "UP and GO" drinks, Maccas drive through brekkies, and so on....loading up on sugar all day long, and not working it off because we sit in a car/train/bus/tram and then in an office etc....unless you're a tradie or similar - most of them are in decent shape.
Strangely; Council workers are often big fat blobs. Curious...
It's all our own choice - many blame "poor genes"...that's crap - when I was a kid, the majority of folks were thin. Now the majority are overweight and worse; genes can't change that much in two generations, folks.
I had a lady come in a few weeks ago for a puncture repair, told her it would take about an hour to fix. She was very, very overweight, about 45 years old.
She had a dog in the car, it was a lovely day, so I suggested she might like to take the dog for a walk along the foreshore while she waited...
Her response was; "Can I leave the dog in the car while it's here with you? I'll go and get a coffee and read a magazine."
Nothing wrong with that activity - we all do it - but you get what I mean. There went a perfect opportunity to do something for her body.
I'll wager there was some cake with that coffee.