Lines outside Tokyo’s pachinko parlors show the limits of Japan’s ability to enforce social distancing, just as the country heads into a series of holidays that could be key to its attempts to control the spread of the coronavirus.

Pachinko, a ¥20.7 trillion industry, has come under scrutiny since Prime Minister Shinzo Abe declared a state of emergency in Tokyo and six other prefectures on April 7. As virus cases continued to climb in the country, topping 12,000, the emergency was extended nationwide.

While many nonessential businesses have voluntarily closed or cut hours in accordance with government requests, there are no penalties for failure to comply and some pachinko parlors have remained open. Concerns have grown as gamblers risk spreading the virus by traveling in search of places to play.