In my opinion, there's far too much travel nowadays.
Visitors from another planet would probably be amazed at all the possibly unnecessary
travel done by Earthlings. For example - at all the millions of people who daily commute
long distances to and from work. It would look like repeatedly disturbing an ants nest.
And why can't African countries build their own Universities? We let too many people
come into our country. I've nothing against foreigners, but the just don't belong here.
Don't bother to try and justify it all - I've heard all the so-called justifications before.
It's just that I've lived in a time when practically everyone went to work on foot or on
bicycle; when an annual holiday was the only time for most people that train travel
happened, and surprise, surprise, I was just as happy then as I am today.