Until you get robbed that is. At least with my cards I'm protected by insurance. The most they can take is my wallet (with nothing in it) and my cellphone.
Pet peeve of mine is women and their handbags. They'll carry their drivers license, credit cards, cellphone, cash (usually around that number quoted as "cash is king"), their ID book, birth certificate, house keys, moms house keys, boyfriends house keys, car keys, other cars keys, the kitchen sink...
And then when they get robbed they spend 3months+ getting their life back... PLUS they're out a substantial amount of money and can't afford to pay for ****...
Don't know about you, but swiping a card is free at my bank... so just as good as cash