A good relationship is predicated on how well it fulfills their wants, not how well it perfects their being by addressing their needs ... including the need to change or sacrifice.
Children are a direct route to selflessness ... which selflessness seems an utter horror to most moderns, I'm sure.
Moderns see the Abyss beneath them, and know the outer darkness that awaits--what have they to do, having nothing but the meager self? To give of it is to hasten the coming dark--to expose their naked souls to Nothing by stripping away their rags--and they of all will most assuredly not go quietly into that dark night, even for children.