Another and most troubling phenomenon for researchers is that as a self-supporting economic unit caring for the elderly and looking after children, the number of economically disadvantaged families has increased in recent years, and the gap between rich and poor households has widened.
進一步探討，做為一個奉養老人、照顧幼兒，並且自給自足的經濟單位，近年來弱勢家庭數量的增加，以及家戶間貧富差距的擴大，是最讓學者憂心的現象。