What about dying alone? / sex? / the Heimlich maneuver? / taking care of you if you become unable to care for yourself? / housework? / ______ ?

Try telling someone you are asexual sometime in conversation, and eventually you will reach a question where the person unwittingly reveals the oft depressing underlying motivations they have for seeking companionship. One can be very lonely even when surrounded by a created family, and most elderly people die without relatives being present- especially if they are the one to outlive their mate (though they are free of course to recreate "Braveheart" hallucinations). It is clearly wrong to trick a person into being with you so that you can use them walking blow up doll, pretzel-dislodger, a maid, or nurse where they would obviously be better off by themselves not committed to such a sham.