Hello, swimming is fun.
I agree!  Humans can hold their breath and are able to do a form of swimming at a few weeks old!
I've seen several videos of babies swimming, do you think that's safe?
It's an evolutionary response, so yes.  The human body also has a natural buoyancy which helps
I suppose it would help them in the long run.  Is there a real health benefit to swimming?
Many people swim for exercise.  It's beneficial for older people and for rehab because it is low-impact compared to land activities
I agree, it's definitely a low impact "sport."  Are there benefits of swimming in rivers or lakes as opposed to a swimming pool?
I'm not sure.  Swimming is always in the top recreational activities, and in some countries, swim lessons are required in their education