Investing to reach early retirement because regular retirement is kindda guaranteed in Singapore

TLDR: Retirement at 65 is guaranteed thanks to CPF, so I'm investing to try to be able to retire way earlier than 65. This is so that I can reach financial freedom, which gives me the freedom of choice. A choice to work because I want to and not because I need to.
Story time
Most Singaporean don't have to worry about investing for retirement as the government forces us to invest 20% of our income. With a guaranteed 4% rate of return, plus an additional 17% once off monthly return (given to us free by our employer). However you can't touch it till you are 65. Now that is super duper long term DCA investment scheme with an amazing rate of return known as CPF
Therefore so long as you are always working, even if you are earning $2,500. Retirement is already guaranteed of course not luxuriously, but a simple life is possible.
So with that as a base, all the extra investment that I'm doing is to try and retire earlier. Knowing that even if all my investment failed and goes to 0, there is still CPF retirement plan as the safety net.
However, even if I manage to reach early retirement, I will still be working regardless if I'm 40 or 65 or 80. The difference is if I'm retired, work will definitely be happy. But if I'm not retired, work might not be happy. Why? because retirement is not an end of my working life, but a card that give me 100% freedom of choice of what work I want to do.
Unhappy with the job or culture? just quit. unhappy with your boss or toxic colleagues? just quit. You can't easily do so if your life depends on the job, can you?
So long I can work, I'll work regardless of age. Because working helps to prevent dementia, give you social interaction, lots of learnings, and gives you purpose in life. But I do hope I can reach financial freedom so I can choose the work I want, and not the job I need.
$Grab Holdings(GRAB.US)$ $Palantir(PLTR.US)$ $UP Fintech(TIGR.US)$ $Futu Holdings Ltd(FUTU.US)$ $NIO Inc(NIO.US)$