In America it seems you are either super obsessed with fitness

Fast food places everywhere. You can't go anywhere without seeing a franchise.

Processed food almost omnipresent. Look at food labels and see the shit that they nefariously add to it. Most of this wasn't added until the mid-late 80's, and things got progressively worse.

People drive everywhere. Most of the US lives in suburban areas where sidewalks are heavily discouraged, and people have to drive everywhere. Remember, sidewalks are made by the government, so therefore evil.

Bad culture. People here have a tendency to love big things. Food portions are no exception. People almost don't know the meaning of restraint and have less value for working hard and being educated.

Those things put together means bad news for healthy living.