What do you need ice cubes for in the hotel?

I think it's to keep warm. Some hotels will have small refrigerators with refrigeration function. Then, if the guests want to drink iced drinks, they can ask the customer service staff if there are any ice cubes, and then ice some red wine, champagne, drinks and so on. Finally, you can drink whatever you want.

In the early days, white people were hot and often felt dry mouth and lips. Then they need to drink cold drinks to relieve these "symptoms". But later, this behavior gradually became a habit.

In hotels, ice cubes are usually provided to guests free of charge. If the star rating is higher, many secondary services are free. For example, the replacement of tea, ice, wet towels and tableware, including condiments, etc.