Very few people quit something in the absolute sense. They may quit a job, but that is very different than quitting on the dream that motivated them to take the job in the first place. If we don’t have a clear definition of “quitting”, how do we know if we’re being tempted to do it?
Very few people “quit” their jobs. They “transition” to something with more potential. Something potentially more fulfilling, lucrative, or challenging. In other words, they may be leaving a job, but their primary dream is still alive as they move on to the next thing.