If I had a legitimate way to make the same amount of money with bitcoin as I do with my currenct fulltime job then hell yeah I would quit right now to go full time on bitcoin but sadly I can't make the same amount of money.
Actually the fact is our day job eats all our time and we cannot spare enough time for bitcoins but if we can manage to do that then I think there is a possibility that we can earn higher income from it.
yeahi agree with what you said in the second comment. it may not be worth it at the start, but if you put time in btc, give it around a month, and a little capital, you may very well be able to earn quite close to what you're earning with your day job. well that applies to me, though sorry. if your day job is like making around 6 figures a month then that's a different story
People who have salary in 6 figures or even in 5 figures will never bother about bitcoins as they will concentrate only on their job as they will never prefer to put that reputed job at risk for the sake of bitcoins.