Travel has no age.
When I walked around Kathmandu, I often found an elder, alone or groups ( I guess they were in the same age with my grandparents ) busy taking a photo or just strolling around the city. I saw some of them walking with a big backpack on their shoulder and the others bring a camera with a big lens.
Then, I wondered about how many places they've visited and how many people they've met. How many experiences they've gained, how many emotions they've fallen. Just by noticing them from where I stand, somehow, I felt so happy and moved. They proved that travel has no age.