Many people, with a nice suit, feel quite good. Do not misunderstand the pragmatic importance of feeling good about yourself.
As a more accessible example: Why do you think more people wear shoes with shoe laces instead of Velcro straps?
As a more accessible example: Why do you think more people wear shoes with shoe laces instead of Velcro straps?
For starters, shoe laces need to be tied, and they come undone. To use Velcro straps you simply have to press them firmly into place, and they take quite a lot of force to undo improperly.
The fact of the matter is the primary reason most people, by a huge margin, chose laces over Velcro is aesthetics (which Velcro sorely lacks).