I travel mostly with cash. Too many times have I come home to fradulent charges ( I believe originated in the airports, not the BVI). I am not normal I know that..... but I do find cash is handy. There are times you do need it-tipping, broken machines etc...When I do use a card I make sure to use a card that is strictly a CC, not a debit one.
I would definitely not abandon a physical card-I have seen some pretty old machines in use.