Assuming you go this route, and save 50% of your income (no easy feat...), you have to work your regular job for a day for each day you want to work full-time o

Assuming you go this route, and save 50% of your income (no easy feat...), you have to work your regular job for a day for each day you want to work full-time on your startup. So, if you work for 2 years, saving like crazy, you've got living expenses for 2 more years. There are plenty of business that are still not profitable after 2 years. Growth just takes time.