Sex is perhaps the smallest part of it. I deal with a lot of senior citizens. For instance this morning I had a woman ask me what to do because her letter e no longer worked on her computer. As you can imagine a number of options came about replace the keyboard, replace the computer (it is a really old computer and it could be the keyboard controller on the motherboard) or use the ASCII code (hold the Alt key and tap 101). Robots or AI will be the companions that will help people to function in the new technology era and also emulate the emotional interaction that people need.