Why do fish find it easy to swim in water yet you hard walk through water?

This is not true. Fish do not find it easy to swim in water, and you do not find it hard to walk through water. Water is a fluid that offers resistance to movement, and both fish and humans must exert force to move through it. Fish have streamlined bodies and fins that help them overcome water resistance and swim efficiently, while humans have to overcome water resistance using their legs and arms.