I want to travel to Australia. Is it convenient to use traveler's checks?

As far as I know, it is very convenient to use traveler's checks, which can be paid safely in various consumption places without extra cost. Traveler's checks have incomparable advantages over cash securities. For travelers, the loss or theft of cash is the most unfortunate thing, but traveler's checks have no such worry. Because traveler's checks are lost or stolen, you can report the loss and reissue them urgently. At the same time, it is understood that it is completely free for some issuers of traveler's checks to reissue traveler's checks at any outlets in the world.