Yeah, I guess if you have everything paid off, even your house, and expenses are low, you can swing it. Taxes go way down. Otherwise, leaving your peak earning years and going down to 1/3-1/4 of your salary....painful. People don't want to have to cut back on their lifestyle massively when they retire, that's the time to travel and have fun. However, it would be good to retire while you are still healthy and stay active. It's a tough call, because you can't undo it. I wish the choice was clear.
Actually, this is pretty off topic, on a thread about hiring. Though I suppose retirement does relate, in some way. Someone should start a thread about retirement.....deciding when to retire as a FedEx pilot.