When your mom, dad, friends, spouse, and neighbor tells you that you CAN'T, WON'T, or SHAN'T make a living online, what do you do?
His particular answer was:
"Just smile politely and back away".
Pretty good stuff.
My point is this: Never let anyone tell you you CAN'T do something. Better yet, don't tell yourself you CAN'T do something. If you want it bad enough, it's yours. Go get it.