Do you understand the limit on the number of times you can use the hotel swimming pool?

Before COVID-19, I mainly traveled abroad, so I wasn't aware that there were limits on the number of times I could use hotel swimming pools. However, after using hotels domestically since the pandemic, I found out about these restrictions. I want to go to the pool and play whenever I want, so the usage limit is a burden. I wonder why these restrictions were imposed. If they were implemented because of COVID-19, shouldn't they be removed by now? I don't think I've seen this kind of thing in other countries.