* Mobile payments
* Navigation
* All manner of IoT devices
* Wearables!
* Digital versions of ID (Mobile Passport Control)
etc.
So no, you can't just use the web.
Same for basically every interaction with locals, for accessing government services, or even just using the public transportation.
It's pretty similar for locals AFAIK.
And before anyone replies that he didn't have to travel there — no, he did, unless he was willing to look for another job (which are very sparse here, you hold on to a good job for dear life).