R.a. Salvatore said this quote

There is a fine line between friendship and parenting, and when that line is crossed, the result is often disastrous. A parent who strives to make a true friend of his or her child may well sacrifice authority, and though the parent may be comfortable with surrendering the dominant position, the unintentional result will be to steal from that child the necessary guidance and, more importantly, the sense of security the parent is supposed to impart. On the opposite side, a friend who takes a role as parents forgets the most important ingredient of friendship: respect.For respect is the guiding principle of friendship, the lighthouse beacon that directs the course of any true friendship. And respect demands trust.