Why do parents think they know everything?

Because they have lived, made mistakes and learnt from them, good and bad. It can be frustating, but more often than not, it comes from a good place

because they are parents and they were child too some year before n they too hv such parents who thinks the same

because they are older than you and are raising you. they think they know whats best for you and just want to love you at the end of the day

Take for example, you stand near a toddler, what would be your attitude , it would be the toddler is inexperienced, and suppose you freeze for some 25 years and the toddler grows up and suddenly you come back to life again, all your mindsets about that toddler who had grown up would be - he does not know as much as I do ... It's simply that parents' mind is so used to our childishness that they simply can't accept the fact that we are grown.. When you become a parent you would understand this !!!

Because they have to act that way. When we were younger, we seek out to our parents for everything we don't know. That's why they're used to acting that way around us

Our parents only want what is best for us, it always comes from a place of love. They have lived longer than us and have a ton of life experience. Sometimes they want to share that knowledge with us, so we can find the best solution for ourselves, instead of enduring pain.

With age comes wisdom, so many parents feel they have that right over the years. Often times, that can be true.

They've known you since before you've known your own name, I think it's safe to say that at least at some point they did know everything when it came to you. But, people get older and, thus, more complicated. Maybe they haven't realized this yet, or, there's a slight chance they do know this and that they're trying to reassure themselves that they didn't do everything possible for you to be happy (which is every parent's biggest nightmare). Either way, you should try to talk with them and make it clear what they're getting wrong about you.

It's just related to the age parents always think that they have been through a lot and that their age allowed them to have many experience and wisdom and that's why they think they know almost everything

Well, they have been at our age, they experienced the puberty and everything, they been through a lot of stuff so they think they can relate to our situation. But our generation is way different than theirs and for example, they no nothing about internet and online bullying that kids are experiencing daily. Although sometimes you think they don't understand, you should talk. It could help. A lot.