I recently visited India and was shocked at how cheap the data plan was. By far the cheapest data I’ve used anywhere in the world.
Many countries in the EU have cheap data plans. In Italy, for example, there's Kena Mobile, which sells 50GB for 6 EUR.
Can you realistically do a gig of data in a day on a 4G connection?
I used to do 120G/month when I had a limit that high, in Poland, for around 8$/month (I was able to use 2G and 3G and everything in between, too, but most of the time I was on 4G)
Just watch 5-6 Youtube videos on a decent phone (1080p or 1440p) and you're done.
1 GB data is like four 720px 8 minute YouTube videos.