If you have access to a bank account then it's not too difficult to get a credit card and in terms of security a CC is much easier to control than a bunch of little pieces of paper.

If the plastic gets stolen or lost you can just cancel it and lose nothing except time (and waiting for a new card to arrive) while with cash you lose it or it gets stolen -- it's gone.

Just to be clear - a credit card should only be used as a debit card, using it like free money is only lying to yourself.