Why do parents with daughters have so many requirements?

Mathematically, since some men leave through international marriage, the male-to-female ratio remains similar.
Considering that half of medical students are women,
incomes are also similar between men and women.
Despite this, the requirements are incredibly high.
And then, for daughters, they even judge the man's looks.
Just be realistic and rank where your daughter would stand out of 100 people.
Stop being delusional.
Because they end up opposing the marriage and ultimately becoming old maids.