Thats not the point ... You really had bad family planning concept in there .. Its really sad .. You know in my family my dad , my uncle take care of my grand ma and grand pa .. I have three cousin sister and a aunt and me my mom .. My fathers uncle live with us too .. Cuz they don't have child .. We live in the same roof .. That's the essence of Islam .. Implying in our day to day stuff .. Its sad that son leave his parents when they are old at when they need them most ..