I think because being able to travel indicates the feeling of being free to do what you want, and human beings love thier freedom...

for me: travel more, know more

travelling makes you enjoy other people's culture and better understand why they act the way they do.

I think travel is important if we can bacause we will be able to gain many things. Knowledge, new  life conditions, new experiences all of these things we can't come up with it if we didn't travel before.