I've eaten at restaurants that have failed, and sometimes I have no idea why they aren't a success. Price reasonable, food is good, location is about the same as the successful ones, but no customers.
If the location is about the same as the successful ones, then the problem could still be location. Or perhaps marketing/advertising. Or perhaps wrong market (food is good to you, but not to the clientele they should be targeting. Just to say it is "the luck of the draw" is wrong. There is good and bad luck, fate, blessing, curse, etc. but you can many times more be successful with the right preparation and experience.
Who's giving up? You really think you can speak for every one of us? Who died and made you God.
Only through hard work and perseverance can one truly suffer.