Don't be so sure. (Nothing's definte, or defined the way you think they are..

)
I remember telling my mother that I wished I hadn't been born. I suppose lots of kids tell that sort of things to their parents. You're an adult in the room, and life comes with ups and downs, wish my mom told me what she considered as her life's purpose or something like it.
My younger self around that age was asking an existential questions and my mom wasn't up for it.
Let me just try to play a devil's advocate here, and tell you that your son may not need as much as you think he needs you. There's no life's manual for anyone on this planet, sure we care for the others, thinking that there's no way to live, for me, it's just dodging the responsibility
of life. Depending on how well you live, no matter the struggles you may have will result in the flourishing of your caring heart. Consequences take responsible actions on our part, we are not a few things that we can list and say we are, I believe we are much more than that.
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Well, I skimmed through your recent posts just now, you were on my mind that's why I'm here posting this, I have a choice not to make a family of my own, everybody's a screw up in one way or the other, nobody's screwing me, even myself, past screw-ups? Let's flush 'em down the toilet,
The situation changes us, the cause and the effect. Is life all that sciency?
Keep your chin up.