Why do parents think they know everything?

Hi, it may caused by lots of reasons, but something that i think is the main reason of that in lots of situations, and most of the time it will happen in 10~14 year old teens, is that your problems which you faced with were simple and they knew them because of their experiences, and when you are growing up, you may have some new problems which wasn't even exist in their teenage period, but they think they have to know it and if they just say "I don't know" you think that they are fool and stupid, which will happen, if you(as parent) don't know when is the time that you can say that!

It could be for different reasons. Perhaps they want to be controlling over you, perhaps they think you're too immature to make some of your own decisions, or perhaps they are trying their best to look out for you.

Do you ever look back on something you did as a young kid and groan in embarrassment? This will continue for your whole life -- when you're forty, you'll hopefully look back on the way you were at thirty and groan. It's a good thing because it shows that you're growing as a person! So, a grown adult with a job and a family looks back on their teenage years and cringes. They've learned so much since then, and the problems of twenty or thirty years ago seem insignificant compared to what they're dealing with now. However, what parents sometimes forget is that, for a young person, these problems are not insignificant. Ever wonder why a baby cries so hard over a little fall or a small disappointment? To someone older, it seems like not such a big deal. But to a baby, that may be the worst experience they've ever had in their life so far. Same goes for adults and teens. For example, an adult might remember their high school relationships and last. But to a teen, it's their first love and their first experience of heartbreak. Adults get so caught up in their reflections on their own life that they forget that the problems of their kids, which may not be so big in the grand scheme of things, are still emotionally just as affecting as the problems of an adult.

Parents go through a longer life experience than their children. Sometimes those opinions and re telling come off as know-it-all-ism. Recognize that their experiences are valid to them as your experiences, which may differ in the long run are valid to you.

They always feel the need to be right even if it means making up lies. They need to have that feel good moment when they tell someone they're wrong

Parents both being the head of the family , basically as a nature always show themselves knowing a lot about their children and their issues , which part is true , since they went through same stage before , and now see their children going through same phase ..which this point gives them the proper knowledge to show themselves knowing everything.

Parents always want to act like protectors and guides, using their experience as the answer to all of the things their children encounter in life. Sometimes that's true and their knowledge saves the day, but each generation lives in a different world and faces different challenges. It's hard for parents to assume that.

Because they have the authority, and authority means responsibilities. They do not know everything but they feel that THEY MUST KNOW everything for the sake of their beloved children,

I think because parents are older and have been through the same things that we're going through now, they believe they have all the answers, and that you'll get through everything just the way they did. In a way I guess they don't expect you to be born with the knowledge, and feel obligated to be there for you every step of the way because they love you.

Parents generally want what's best for their kids. Therefore if you try to go and do anything that may end badly our has ended badly for them in the past, they will attempt to stop you.