At present, the price of paper cups will be more expensive than plastic cups, but relatively speaking, cups of this material will be healthier if you drink water. Plastics are actually more or less harmful to the body at high temperatures. Therefore, for your own health, of course, you must abandon plastic cups and use paper cups to drink water.
Of course, another characteristic of the paper cup is that its thermal conductivity is not very good. If you want to drink a cup of steaming water in a plastic cup in winter, it will be very hot if you hold it in your hand, but the paper cup is not. Similarly, at this time, the hands are just warm but not hot. So to sum up, whether it is in terms of environment, physical health, or ease of use, paper cups certainly have more advantages and are the best choice.