What can make you quit as a freelancer?

[Btaliat]

As a freelancer, you can never say never. There are many freelancers that have stopped being freelancers. There are many reasons why they can stop. Some can stop because they aren't making much from the freelancing service. Others can stop because they see better options that they can do that can fetch them more money than freelancing. Are you a freelancer? What else do you think can make freelancer wants to give up on freelancing?