There are a few medical conditions that can result in a person gaining weight that is difficult to stop but those are rare cases. The other 99% are obese by choice. Stop making excuses, stop blaming others. McDonalds and KFC didn't force feed you on gunpoint. That 1.5L bottle of soda is not on your doctor's prescription for twice a day consumption. 16oz is too much steak for anyone. Hot fudge sundae is not a food group. Parking by the curb in a fire lane just so you don't have to walk 20-steps if parked in a the parking lot is a choice. It is your choice to make. At least be honest about it and don't expect others to treat you special for your personal choices (e.G. You want more space on the place, buy an extra seat or biz class seat).
While being simply overweight can be attributed to things like a medical condition or lack of healthy food choices, being obese is a whole different ball game. That says to yourself and the people around you that you've made some extremely poor choices in diet and exercise, and you've done so much wrong that it's hard to go back.
Being obese is a choice; people in the US are becoming obese from laziness, less exercise, and more food. Research states that obesity is the 2nd most critical health in america. Being obese can give you a heart attack, it can cause obstructive sleep apnea (causes your breathing to stop during sleep.) you can get diabetes, high blood pressure, and causes acid reflux. Its hard to stop but its your fault in for being that way ion the first place.
Walking around your neighborhood on public roads is absolutely free. In the winter, you can walk around the mall if you dislike the cold.
You can prepare healthy meals from scratch for LESS overall than you can purchase pre-packaged processed frozen meals. There are plenty of resources for healthy recipes online such as allrecipes and pinterest. Did you know food stamps can even be used to purchase food bearing plants and seeds? Grow a small garden for cheap, healthy veggies and herbs! NO EXCUSE.
Humans are biologically programmed to choose unhealthy foods high in sugar and fat over healthier foods. Fast food companies as well as companies selling processed foods high in sugar and fat take advantage of this by making unhealthy addicting foods unavoidable. Many people just don't have the choice to eat healthy. i.e. food deserts where sometimes people have to drive over 20 miles to reach a supermarket with fresh produce and often times do not have a vehicle to do so. Furthermore, our culture makes unhealthy food available to us 24/7 on the tv, on the computer, on the plane, while we are driving, or by the over saturation of fast food joints across American and then expects that we constantly reject these temptations that appeal to our biologically programmed desires.