So I adopted some snotty kid out of the orphanage with the express wish to send him back to my house and there have a ready supply of blood to sate my vampyric thirsts....

All good so far - the less than responsible lady in charge of the orphanage merely wanted to know what I do for a living and where I'll house the little bleeder once I adopt him - and she's happy with me saying I'm Dragonborn and that I at least have a house. Social services will need to hear about her.

Great - sign the papers and adopt the mewlng brat. Get back to my abode in Solitude and ah, there he is, my new permanent blood bank. I wait for the little [censored] to turn in, at 1.30am (gonna have to speak to him about that) and creep up all quiet-like to his bedside, ready to feed on the plump little fellow.

And then.... I can't feed on him! Sneak doesn't give me the option... I would never have adopted this annoying child had I not thought I would be gaining a convenient and permanent blood supply!

Is there anyway I can make good my purchase and feed of this little bloodsvcker?! He is ugly too.

Can't do anything that harms kids, period, unless on pc with mods. Shame on you!!

Discussing the harming of children is not allowed.
Bethesda isn't going to make a game where that is even a gameplay option.

There are many other ways to feed on blood in Skyrim.