Australia has 25,000 kms of coastline...and cars living on the coast can rot away if not maintained...but, just like living in cold parts with salted roads, it is just a part of life, enjoying your motoring whilst paying for the privilege!!
If I take a classic to visit or attend a local function etc ...I factor in an extra 20 minutes to get there...because I usually WANT to go the long way
Do what you need to do to keep your vehicles in good condition...but get out there and enjoy them.