Owning a business is a noble profession - especially if it's done well.
But let me say a disclaimer, being an entrepreneur is extremely challenging. It takes a tremendous amount of discipline and resources to pull this through.
So before starting an online business, think carefully about the person you are and who you want to be, and how owning an online business will help you become that person.
In short, it is critically important that you understand your motivations before you get to the small business world.