Many old customs are gradually dying out.

A novelty wears off in time.

Ancient customs are dying out quickly today.

The gift-giving custom dies hard.

Miniskirts have gone out of fashion.

Miniskirts have been out of date for some time.

That custom is on the decrease.

That old tradition has disappeared.

That custom has long been done away with.

The art of making wooden bowls like these has died out.

Once they came in, Levi's never went out of fashion.