I surrendered any attempts at beta-reading because the majority of those who sought help did not actually want help. They wanted someone to correct all of their mistakes, pat them on the head, and send them on their way. I can only explain the same rule so many times before I explode. I do expect adults, and children alike, to learn from their mistakes. This is probably a major reason why I left teaching -- no patience!
Teaching is rapidly becoming a lost art. Society and the bureaucracy have relegated our educational system to glorified babysitting services. "Don't discourage the poor dears!" "Just love them more!" "We have to pass 'the test'." Sadly, even when the teachers attempt to teach, time and subject matter constraints limit them mercilessly. When it came down to the PSSA writing tests for my kids, guess who taught them to peruse a few short paragraphs and answer an essay question? My kids still have me proofread their writing. Surprisingly, I find I only have to explain things to them once or twice. I find it very discouraging when students are merely encouraged to memorize and repeat rather than absorb, formulate and apply.
The greatest gift we can give our children is the desire to learn, thereby improve, at every opportunity. This gift requires more time and attention than the majority, that I have been exposed to, of parents care to invest. I'm not saying this is your failure. I'm just commenting in general. Not all parents are capable of teaching their own kids, and as such, should be able to trust the educational system to help them. Epic fail, in most cases. -- fragment intended for emphasis.
I cannot comprehend how so many writers, fanfiction or not, can publish stuff that is so riddled with spelling, punctuation, capitalization and content errors and be praised for such stuff. Typos and blatant blah in published works -- actually paperbacks, etc., set my blood to boiling. No one is perfect. One or two mistakes, I can overlook. Folks eating grandma? No, I cannot bear the cannibalism.