For most people, going to formal school is with the aim of finishing with good grades so that one could land himself or herself with a white-collar job. The call to finish with good grades is usually from parents, relatives, and at times classmates at school.
Very few people talk about starting their own business on completion of formal school (at least the first degree). The reason is because majority of people in the world are in paid employment working for very few individuals who have gotten themselves to think outside the idea of working for others to creating employment themselves for others.
Majority who work for business owners are very rarely able to think of life as their own boss. They are so used to receiving salary either weekly or monthly that they become relaxed and assume it would continue to remain so.