Normally, most people do their responsibilities which are divided by age or jobs. If their age is relatively young, then they have to study to pursue their dreams academically. In terms of young adults, they usually experience more and more to get opened perspectives, helping them to overcome various challenges they can come across. When it comes to young adults, they usually gain broader perspectives through new experiences, which help them overcome various challenges they may encounter. So, I think young adults are the most active group for this reason. For elderly people, I guess they already retired from their work, which remained a lot of free time to enjoy the world financially. This leaves them with plenty of free time to enjoy the world while being financially stable.Therefore, most older people go to travel if their health is enough to go trip.As a result, most older people choose to travel if their health allows them to do so.