Two of my kids take their families bowling at least a couple times a month. They try to go every week. One lives in central Sacramento, where there's only 1 bowling alley left, and the other lives in a neighboring city where there are none left. They travel to central Sacramento to bowl.
The local bowling alleys that closed had gotten very run-down. Most of them opened in the 50s and 60s. Few had ever replaced the carpeting, and by the 80s and 90s it was stinky and worn through in spots. They all stopped hiring wait staff, and over half of them stopped serving food at all. Our one remaining bowling alley has a kiosk that sells only pretzels, hot dogs, chips, and soda. They all closed down their cocktail bars, and soon stopped serving beer as well.
As a result, bowling leagues petered out. The leagues brought in a lot of money. With shrunken league participation, even after reducing staff and services to bare-bones, bowling alley owners could barely afford to maintain the machinery, repair and replace rental shoes and etc. The buildings got rundown and eventually they began closing.