There was a time when hiking was a must for human beings. Those days are long gone. But our bodies are not. They are still the same bodies our ancestors lugged around for millennia. So, deep within you is a great need to walk among the trees, over the streams, and up the mountains.
Don't overthink it, just do it. Don't look for a magic benefit, just do it. Don't do it to show off online, just do it.
Hiking is about connecting with the very source of who you are, where you come from, and where you are going. In other words, of the elements you are made, from the elements do you arise, and to the elements do you go. Enjoy it!