Demons do exist everywhere. They are always on the prowl to injure us and our children. That’s why it’s called spiritual warfare. You need to be close to Christ and call on His name to dispel them. You don’t need to fear them but you do need to be aware that they exist. That’s why you pray blessings over your children, to protect them from the temptations of this world, which are demonic.
There are those who believe that demons follow our families through the generations. Many diseases pass through from generation to generation, addictions, anger, bitterness, resentments can travel from generation to generation. But they can be stopped by a Christian parent through prayer and sometimes deliverance. Cancer has devastated my family. I pray against it all the time. Alcohol the same. I pray against those things in the Name of Jesus.
There are books on the subject that explain it much more succinctly than I can.
OH, I am sure there are many books on the subject, as there are on any subject, and I really dont feel the need to get into any of them whatsoever...after all, it is just someone elses opinion....