"Home cooking" is not something that is valued in our society today in the US as a general rule.
Women may stand out as being different from their mothers or grandmothers in this respect today because they have *not* been encouraged to learn the ways of the home kitchen. (We'll set aside men who are another topic - just to avoid confusion here.)
Women today have the defined task in our society (as a general rule) that is the same as men: to develop their own capabilities into something that could be called a "career" or at the least, a "job" that will bring in income.
Oh, plus they still are the ones that bear children. Nobody has quite figured out how to completely equalize this thing between the sexes yet.
Our mothers and grandmothers performed a needed task when they cooked.
The food *needed* to be prepared for the family. There were not the options for finding ready-made meals everywhere else in sight, as there is now.
And they were (hopefully) appreciated when they did this neccesary task.
Walk into a room full of people chatting some day.
Watch the woman who is telling someone about her new job and her marvellous career prospects. Watch the response of people to her - both men and women.
Then watch the woman who is telling someone about what she cooked for her family's dinner the night before. Watch the response of people to her - again, both men and women.
It is natural for people to aim towards doing things that will bring them appreciation and rewards.
Young women today are not thinking of being homemakers "first". They are thinking of finding some sort of way to support themselves financially "first".
Then all they have to worry about, later, is how to make a great meal in the time left after work after doing the housecleaning and after taking care of the kids.
That's all they have to figure out. Minor stuff.