Why are many sole proprietorships run by part time entrepreneurs who earn most of their income by being employed by another firm?

Many sole proprietorships are run by part-time entrepreneurs because they provide a flexible way to pursue personal business interests while maintaining the financial stability of a full-time job. This dual approach allows individuals to test their business ideas without the immediate pressure of generating sufficient income from the venture alone. Additionally, part-time entrepreneurship can help mitigate risks associated with starting a new business, enabling individuals to balance their entrepreneurial aspirations with the security of a steady paycheck.