How much does it cost for children to learn roller skating? A class lasts 45 minutes. Tell me about the current market.

Actually, I don't need to learn at all. My sister is in grade one. When she was three years old, she watched others play roller skating, so she bought roller skating and played it for three years. They all taught themselves, participated in competitions and won two gold medals, one gold and one silver, in speed skating. I asked her, and she said, "Roller skating is for fun, so you don't have to learn it." I've only been skating for less than a year now, and it's also very good. Compared with some brothers and sisters who have studied for a year, I won in the square. Actually, I don't have to study deliberately.