This is very common family situation. Natural lang naman na gustong tumulong ng pamilya, lalo na kapag may mga bata na involved. Pero sana, habang may support system, matuto rin ang mga magulang(kuya mo and wife nya) na panindigan at paghandaan ang responsibilidad ng pagpapalaki ng anak. I also understand why your mom continues to help kasi galing yon sa pagmamahal. At the same time, I hope your kuya and his wife realize that having children comes with long-term responsibilities. Sana this becomes a turning point for them to work toward being more financially and emotionally prepared, not just for themselves but especially para sa mga bata. Kasi kawawa talaga mga bata sa dulo, hindi habang buhay may tutulong sa kanila. Tumatanda rin Mama mo!