Well, i beg to differ. And i'm older than that. In my view, we have a very limited time to live, and experiencing the amazing planet we're on in all its variety is one of the best things one can do.
You're just scratching the surface of said amazing planet, you're not experiencing anything of value that you couldn't have experienced back home. There's a real good essay on the emptiness of tourism written by Siegfried Kracauer back in the 1930s, just as mass tourism was beginning to take off, Travel and Dance [1] is called, it is still highly relevant almost 100 years later.