Why do you have a funeral in a church than somewhere else?

Witnesses have 'memorials', which are public discourses, given from God's Word in Kingdom Halls (the places of worship for Jehovah's Witnesses), funeral homes or at the graveside. They do not have funerals in Churches. These memorial talks usually explain how death came to the human family thru Adam and Eve's sin. (Genesis Chapter 3) They then give comfort for the grieving ones, from The Bible, and then explaining how Jesus Christ taught his Father's will and then gave his life so that we could have everlasting life. (John 3:16, 17) This 'everlasting life' will be either in resurrection to Heaven serving with the resurrected Jesus Christ as kings and priests (Revelation 20:6), or as resurrected subjects on the cleansed Earth who will benefit from the blessing of the Heavenly Kingdom, in the near future. (Revelation 21: 3,4) The speaker then relates fond memories of the dead loved one and Words of comfort for the grieving ones. Then, after a song of praise to Jehovah God, a closing prayer is given asking for God to strengthen those left behind.