I am surprised by the fact that arrange marriage are still a thing in places like Japan, granted only a small percent, but still. So everytime I read a manga like this, my mind goes "wait people still have arranged marriage in country like japan", before rembering, " yes, yes they do".
I don’t think mangas usually accurately depict what’s currently true in mainstream Japan.
In the 1960s, a survey analysis reported that 40.7 percent of all marriages were arranged in the manner mentioned above, and 57.0 percent were a freely made decision or love-oriented marriage. The rate of arranged marriage in a 1980s survey dropped to 22.8 percent for arranged marriages and rose to 71.8 percent for love-oriented marriages.
So yeah, the numbers change in that trend. It’s true that 0% arranged marriage probably isn’t the case right now though. But it’s not to the point where you see it often in mainstream media. And it’s not just Japan either—arranged marriages happen in Europe, South Asia, United States etc. In conclusion, whether it’s a developing or developed countries, arranged marriages still happen