It is like any other self-employed position. No retirement, no paid vacations, no benefits like group medical insurance. You pay both parts of your social security & all your other taxes. Setting up is expensive. You will need Liability insurance to cover what you might damage of other people's items....& it does happen sometimes.

To get customers, you have to have referrals from samples of your work. You have to create a reason for people to choose you over the business fronts that are walkins with set hours everyday. I wouldn't quit my day job to start up from scratch if I was head of household.

well, there is nothing called impossible in the online world. business opportunities are many and you can too earn lot.

Here is a link that might be useful: Business Opportunities