It's just the swimming pool that has a lot of rules. Swimsuits are mandatory, right? What if someone comes all the way and doesn't prepare a swimsuit, and their only purpose is to supervise the children swimming in the pool, how can they have a swimsuit? And 2-year-olds aren't really good swimmers, they just want to play in the water, so they really need a swimsuit? They're not going to be athletes there. They have to rent a swimsuit for 60,000 Rupiah, and then swim for another 60,000 Rupiah in the morning, hmm. Just let the kids go if their only goal is to splash around in the water.