Cash or Debit Card?

Hi,
Most people (in the developed countries) will carry some cash (for small expenses) but they'll use credit cards for most of their business. 
No, one doesn't need today cash to get around (in the developed countries one can get along with credit cards + small amount in cash).
Best regards,

It depends on what works for you.  If you are prone to spending recklessly, I would go with cash only, as it sets a limit on how much you can spend.  If you don't want to see a wad of cash in your wallet, use a coupon file as a budgeting tool.  Yes, it sounds crazy, but the idea is the pockets in the file keep the money separated so you know how much you have for each bill you need to pay.

Personally, I don't use a regular bank.  I do all of my banking online with no plastic or checkbook.  It's a great way to build my savings, as I can't access the money.

Cash is necessary.  Tips, cash based services, quick transactions, etc.

A low dollar digital purse would actually be best, but that won't happen for a bit. 

I believe in old fashioned ways were you keep your money in your pocket and not in a virtual electronic world. I think if everything went electronically many problems will evolve . Cash is crucial like mentioned before  and when we will encounter problems with technology we always go back to the old methods.

It depends. Mostly professionals or businessman carry credit cards for business and personal purposes. I do carry credit cards and and small cash.

Cash is always the best way to pay for most of your needs on a daily basis.  Having a debit card is a privledge.  You have to have money in the bank to have a debit card and an account.