It varies somewhat by continent, but living very far from the ocean is what’s new. Humans have historically had by far the densest population near shores - river deltas, archipelagos, and so on.

The notion that “seeing the ocean” was a very special thing to most people in history is unlikely. To a Hungarian peasant or a Mongol shepherd, sure, but there were far more people along the Mediterranean coast, the Pearl River delta, and so on.

The reason is very simple: Ocean = free food.