/kloc-What should I do if I book a hotel in America under 0/8 years old?

As long as you have a credit card, you can book hotels online.

But if you are under the age of 18, you can't stay in the hotel you want.

I suggest that you should stay in the hotel accompanied by an adult.

This is a federal law in the United States, and it's the same everywhere, unless you live in a motel and pay directly in cash, but that's not safe. The shopkeeper may be arrested and imprisoned for this. Generally speaking, they don't want to break the law for petty gain. In the United States, everyone attaches great importance to the reputation of the industry, especially in new york, Boston, Miami and other tourist hotspots.