How to treat the rural elderly who prefer boys to girls?

Since ancient times, there has been a saying that raising children to prevent old age, so every family is looking forward to having a son to carry on the family line, and there will be successors who can help them support the elderly, so those who have no sons will try their best to have sons. When you have a son, you should be a treasure and treat your daughter as grass. This is the idea of my father's generation. With the development of the times, men and women are now equal, and girls are no worse than boys. Except in some remote and backward rural areas, the concept of son preference basically does not exist.