I suppose it depends on what you mean by too supportive. The person doing the helping doesn't always realize that the other person may not be mentally ready for something. It also depends upon who you are helping. I'm assuming you are refering to an adult who has an average iq or higher. It just depends. If it wasn't an adult for instance, like if i was a child, the parent would not be helping him/her by doing their homework, but they would be by showing them how. and by saying being to supportive do you mean being to giving of fiancial asssets? Becasue i would agree to that statment then. I know many people who are mentally held behind because their parents just give them too much.