I'm obese, and I have walked/bicycled over twice that far to go to work. Because if I hadn't it meant a family of four was going to be out of food and shelter. You can do a lot of things you thought you couldn't do when you have to and when excuses aren't going to cut it. Trouble is....you don't have to do anything.
A paraphrased story, originally from the great and much lamented philosopher Jerry Clower:
"When I have prayed 'Lord, send me a chicken', I've never gotten one. But when I pray 'Lord, send me out after a chicken', I get one every time."
Obesity, lack of a job, and lack of transportation are all curable....just not from a chair in front of a computer screen. Instead of sitting around waiting for a chicken, get up and go look for one.