reciting quran

Reading Qur’an After Someone’s Death

As-salaamu alaykum wa Rahmatullahi wa BarakatuhDear brotherI my community when somebody dies we read quran, surah baqra, surah yaseen and so on some certain number of times. If somebody is facing any health or other kinds of problem we say ya salaamo or ayate karima certain number of times. If somebody is shifted in a new house they invite other people to read and finish a quran for Allah?s blessings. Now my question is that is it according to Islamic teachings. I read in a book that our prophet (SAW) didn?t use to follow this practice whenever somebody died in his era. He use to pray for that persons forgiveness but not to read quran and some surahs. Is this bidah. And if I was invited to someone?s house for this should I go or simply make an excuse.My second question is that my husband is working for a conventional bank. We read the fatwas on your site and he too was with me. He is taking care and avoiding as much as possible not to involve himself with the interest based transactions. Allah has been kind to us and my husband has now been promoted to a seat where he is basically doing people management. Now my heart keeps on troubling me that what if he involves himself with interest based transactions. Our riziq becomes impure and so our prayers and istighfar won?t be accepted. This thought also troubles me as there is a difference of opinion between the scholars on working in a conventional bank. I want to perform hajj but then again I get worried that what if our earnings are not from a desirable source. Allah says that he guides the ones who seek guidance. Now what if the opinions of the scholars who say that working for a conventional bank is not permissible is my guidance and I am taking an easy way out. I do try to ask my husband when he tells me about any transactions that involve him that are they interest based or not. Sometimes I get worried that he might start getting upset with my continuous asking. Now what should I do? What should be my role as a wife? What should I do w ith my trouble thoughts? Please help me out.One more thing which I want to ask you is that my daughter is 7 years old. Now to teach her the prayers what I am doing is that whenever I am praying I ask her to join me. I say the whole prayer loudly so that she can hear it. Is this the correct way? If not how should I teach her because after school and her ho,ework she is not left with much of time. And what about my prayers? If what I am doing is incorrect will my prayers be accepted?ThanksJazak Allah Khair.