When I turned 18 I resolved to lose weight and part of that was going to the gym literally every day. I forced myself to go for 2 months straight because I was told that doing something for 2 months forms a habit. I never enjoyed it and so I stopped.
Every time I've ever succeeded at losing weight (lowest was ~185) was from diet combining alternate day fasting, counted calories, doing keto, with no exercise besides moderate city walking. At my best, I ate 600 calories on off days and 1800 on on days and I counted everything. My only meal on off days was a piece of fish and I'd measure out a tablespoon of wasabi mayo for it. I also switched from soda to zero calorie arizona tea with ginseng - it's the one with the asian lady on it. That's basically it. It impacted every facet of my life, I did not feel good half the time, I had trouble concentrating on work, and it ended the nanosecond the relationship I was dieting for ended. Literally the day that the relationship ended I went out and got fried chicken. I never again fit into the jacket I bought myself at my lowest.
I realize to the contingent of men obsessed with physical fitness, there is only one righteous path and everything else is an excuse. I don't care. I don't do things I don't enjoy. You cannot compel me to do something I don't want to do. I get everything I want with my current lifestyle. If I didn't, I would do something else.
Besides general longevity and health, the only reason I can think of to lose weight is that people who are not overweight are treated better in general. By everyone. Men and women. We are internally biased against overweight people because it is a physical display of deliberate choice to be less healthy than possible. So theoretically if I ever wanted to or had to do appearances, be it in court or for interviews, I would simply have more base charisma by not being overweight. The issue with this as a motivating factor is (1) I have absolutely no intention to permanently sacrifice my privacy for temporary gain, and (2) by the time these things would be on the horizon, it would be too late to actually lose weight anyways. So it's not really that persuasive for motivation.
