Individually we can talk on all four aspects.
Talking on parenting primarily I would say to every parent to stop making their child feel that they're special... Yes they're common and not special because once if your kid is growing with this tag of being special they need it always. Stop fulfilling every wish your child asks for rather let them turn up for all that they want. This will help to overcome their stubbornness. No need to bribe for your kid for anything. Providing them electronic gadgets especially smartphones until there is a necessity of it.
One step of parents may forever be taken for granted and ultimately all millennial are left with a tag, " I've my parents to make everything possible for me by hook or crook."
Let them face the reality wherein they don't have anyone to give hand when they fall. Let them get up on their own so they can realize the difficulty of getting up after a fall. It is well and truly said, " It is hard to fail, but it is worse never to have tried to succeed. " Let your kid succeed on his own. Remember he'll achieve only when he is worth of it.