It depends if im earning 5-10 BTC a day without miss, i will quit my day job. Earning that amount of btc everyday is very nice, you can support your family and your daily habit by that.
why you need to earn that much, i doubt you're making the same with your real life job, yeah bitcoin is unstable
but this amount you want far exceed any regular job out there, if you can earn 1 btc a day you should already leave your normal job...
5 BTC a day means 150 BTC in a month which approx. is ~35,000 USD
I think it is just enough this income for a year not for a month lol.
If i earn so much i would leave immediately wouldn't think twice

Indeed. Like they were saying even 1 BTC/day would be nice but if you're living off that you would need to wory about taxes. That's important.