At least in Australian public schools Latin’s almost non-existent. Any second-hand Latin textbooks I find are from around the 1960’s. Perhaps there’s there’s no one single reason. Maybe - It’s a hard language to learn, and like mathematics if you start to fall behind you’ll utterly fail. In a softer, sensitive age, even English grammar is now considered too hard for australian students to learn. - We no longer look to antiquity for guidance or inspiration at all- to do so is considered small-minded, parochial, old-fashioned and irrelevant. Instead Australian students now look to Aboriginal and modern Australia for culture and history. - the decline of Christianity. Few people read even English bibles now, let alone Latin and Greek. - too few teachers. - it’s considered irrelevant compared to living languages. Australia’s private schools are more likely to have a go at it but few families can afford the very expensive school fees.