according to statistics, the number of men is less than women
for example in class, you would find 20 girls VS only 10 boys
the question is: if these ten boys married ten girls of the same class, what would hapen to the rest 10 girls??
stay at home??
a girl not married is always left out, her brothers will marry and live on their own they will have a new home new responsibilities they won't take care of her
her parents will die someday
she will be lonely
what could she do if no one comes to ask her to marriage??
then work would be the best way to get safe
++++++
here I'm not talking about married women cuz as you said staying at home is better for them
I'm talking about women who did'nt get the chance to marry and they're 35 years old or more