From what I read in the article, the child is not directly paying for the rent; the mother is just asking her to pay that amount every month in order to support the family.
I don't think the mother is wrong for asking her to support her family since she is part of the family and helping them to pay that little amount will relief the family from either going broke or using some other amount to take care of some other needs in the family since there is a high rate of inflation everywhere in the world.
If her monthly salary is far above the amount the mother has asked her to be paying monthly to support the family I think the daughter should be happy because her mother is teaching her how to take care of responsibilities which will later help her in future when she has her own family, at least she's no longer going to depend on her husband to pay all the bills in the house when she gets married since her mother has already taught her how to take care of some family responsibilities.