I remember feeling less and less inclined to research nutritional data, and to listen to the so-called educated experts
Congratialation! I wish I had discovered that at the age of 17 already. It took me a bit longer, but better late than never, right? I'd dare to go even further and say that the so-called experts are responsible for a lot of problems in the modern, ‘highly developed’, western society.
I do think, though, Thailand is a much more fruitarian-friendly environment than Norway, not just because of the price (as @watermelonprince has already mentioned), but also because of the abundance and variety of locally grown quality products.
Yeah, I try to avoid buying fruit when it is out of season because it is bad for sustainability.