Keep the day jobs - one thing that kills startups is lack of runway, and without your stable day job, you are burning a very short runway. Consulting to pay bills is going to dilute your time away to nothing, even more than the day job would. Better to just keep working where you do, and grab a few hours a week to start this as a side gig. When it makes enough to replace your day job, that is the time to make the switch.