>>397315799% don't have tiny breasts, sorry. You also don't have a GF, sorry.
It also depends where you go in Asia. Also in western countries that have low rates of overweight the breast size is also on average small.
Breast sizes in places like the US, UK etc are fraudulent as most of the women are overweight and many obese, so it's a poor measuring stick.
If you go to places like Japan or northern China then about 7 in 10 women have smallish breasts, 2 have medium or small-medium and 1 has largish ones.
There are literally hundreds in Japanese porn with large natural ones, some huge.
I have been around the world and can confirm. I have also been to countries in Europe with low obesity and the average breast size is barely above Asia, it's because they aren't fat similar to how Asians aren't fat.
You will find that when you get fat a lot of it deposits also in the breast area. Falsely increasing the bust and bra size needed.
