I worked with a helicopter parent, newly qualified as a teacher, whose first, and only, teaching post was in the school her intelligent and motivated children attended. She was the bane of the Primary department, constantly criticising their teaching and demanding work was remarked after she had 'checked it over'. Standardised tests were a nightmare.
The children had to be top in everything to satisfy their mother; eventually she beggared herself sending them to a mediocre private school instead of the local grammar schools both wanted to attend, because state education wasn't good enough. Both achieved their mother's ambition in choice of career, but now in their thirties one has moved far away and is considering a change of career and one is estranged because she cannot stop trying to dictate their careers, relationships and now child-rearing.
The tragedy is everything she did was for the benefit of her children, but she regarded them as an extension of herself, not independent personalities and they finally rebelled.