Many elderly couples living in older apartments on the outskirts of Seoul survive on 550,000 KRW per month.

Current market prices for older apartments on the outskirts of Seoul are 600–900 million KRW.
Looking at semi-elderly or elderly people aged 57 and older, most couples live on a basic pension of 550,000 KRW per month.
25 years ago, apartments were not high-priced commodities like they are now.
20 years ago, a 23-pyeong villa had an actual transaction price of 160 million KRW,
while an 18-pyeong apartment on the outskirts of Seoul had an actual transaction price of 170 million KRW.
So, it makes no sense to say they were expensive back then due to the value of currency.
Also, back then, there were no reconstruction contributions for redevelopment on the outskirts of Seoul.
They were traded at 170 million KRW, a price similar to villas 20 years ago, and have now become apartments worth 600–900 million KRW. Their income capacity is terrible.
If they just had a small villa or a tiled-roof house on a 10-pyeong plot of land when they were young and moved in without paying reconstruction contributions, do you think they will suddenly gain financial capability as they age? There are many semi-elderly and elderly people living on just 550,000 KRW or similar income levels. ㅡ.ㅡ