Hiking is fun when friends and family accompany you on a trail, but hiking across the whole world is way too much for me. Hiking all day will become extremely boring and tiring without proper rest in between days. Food and water are also a concern because you won’t be able to walk into a restaurant and just eat. You would have to either pick some as you go or pack for a long time. Dehydrated food isn’t the best when you think about it. It has a higher calorie for a smaller size, loses flavor and texture, and has limited food options. Water is only obtained through rain, rivers, or bottles, which won’t last for a long time. Hiking the world would make you lose contact with family and friends. To make a call, you would have to be in a town or city, not the forest. Even though nature is great, you would be isolated and need to sacrifice comfort.