There are subtle differences to running a business and being a freelancer, as I can testify having started working for myself with the former but becoming the latter five years later.
1. Work when you want
Where you want and with who you want and at your own pace. You can work during your best hours – be that early morning or late at night, rather than 9-5.
2. Only need to make enough money
There are no board members/shareholders/colleagues telling you to grow the business and make more money.
If you can make what you need to have a lovely life in 3 days, why work seven?
3. Clients are collaborators
These are the people you partner with, work together for the best results. You give an amazing service to your clients and they will recommend you to others.
4. You want to support others
Sharing the love and recommending other freelancers for work means everyone succeeds. It's a lovely family to belong to.
5. You get more done
Working independently means never having to commute, listen to water cooler gossip or get involved with office politics.
6. You always want to work
Because your to-do list always has great projects to work on.
You look forward to holidays because it means a change of scene and enjoying the fruits of your labour rather than getting away for a week.
Similarly, if you love what you do, why will you ever retire?