Not necessarily, it's not uncommon for somebody starting college to ask how long it would take to get a degree and people who do ask usually don't drop out. After all, it's smart to at least have a general idea of how long it might take.Working in gyms and leading classes with thousands of people has given me some insight into human psychology. Most people who ask how long something will take to achieve rarely last the course.
True, if you're really enthusiastic about it you will keep it up, no matter how advanced you get or what rank you might hold.Whereas those who enjoy turning up to classes with a passion continue to train and train, week after week and year after year.
For adults such stuff could be like college degrees, or like ranks and positions that you might hold in a company that you work for.Belts, uniforms, grades, medals, trophies and certificates could be seen as good motivators for children but tend to have limited value for adults.