Why don't the police check the hotel but the puppy house?

Generally, the police don't check big hotels, but small hotels. That's because hotels sometimes check. However, it is better for hotels to abide by the law and have higher requirements. If they sign up for science, they are required to have an ID card. If they don't have an ID card, they can't stay in a big hotel, no matter what kind of hotel. A three-star or five-star hotel is not allowed to live without an ID card, but knowing the hotel is different, especially for private people. Who can let him live without an ID card or a fake ID card, because they also have no ability to distinguish between true and false ID cards! And hotels have the ability to distinguish between big and small. Really? The ID card holder met a fake ID card holder. And hotels have the ability to distinguish between big and small. Really? ID card holders will even call the police if they encounter a fake ID card.