Do hotels and restaurants in Europe have boiled water now?

European restaurants provide boiled water. After eating a good meal, you can fill it with boiling water. The hotel guarantees that there is no boiled water. Every hotel is like this. You should bring a kettle when you go, just a smaller one. You can buy one in the supermarket. When we go back to the hotel, we will boil water for ourselves. Because I am not used to drinking cold water, I can only cook it myself. We must bring it. People in our team knock on our door every night. . .