Children lack both experience and knowledge, and by default can not be wise since wisdom is a product of the learning which comes from having both.
Furthermore, respecting your elders, and by extension the order and structure which both family and society brings is an important lesson which today's society is now poorly lacking in.
That children should behave well, not intervene in adult discussions and speak in them only when spoken to is itself a valuable lesson that properly integrates children into their place in a well functioning hierarchically ordered society.
That they should be present during important discussions and listen to their elders is a means towards the goal of learning from their elders, and this method of elders passing on knowledge to their children is a proven and tried method of learning as old as our species.
Finally, keep in mind the physiological fact that the mentally and emotionally still developing child psychologically craves the security that structure brings, to a much greater degree than even some adults still do.
We see many ills in our fractured society today which have developed concurrently with liberal experiments in social change and the abandonment of traditional family values. Next time there is a school shooting consider that perhaps such bad parenting and the abandonment of thousands of generations of social structure was one factor in the root cause of that child going wrong. As an adult if you find yourself triggered by such an argument then perhaps you too are another entitled and spoiled product of the same failed parenting experiments which the cultural Marxists have imposed upon our society.
They aren't robots. They are people who deserve the same rights as adults. They have important things to say and their thoughts and opinions matter. They aren't objects. They are children. They are the future. It's 2014 and they should be treated with the respect they deserve. It's 2014 now.
Children do have opinions and although children have a lack of life experience it doesn't necessarily mean that they are always wrong. Plus there is a theory that when children are first born, they are the closest to the truth. Sometimes they just might be right. Also, no matter children's opinions are right or wrong, it's still a good thing to speak it out, because one day these children are gonna become adults. And if they never talked about their opinions and express themselves when they were children, how are they gonna live independently when they grow up?
Children are not robots. They are human beings like we are. We were once children so therefore we should treat them like we treat other adults. People don't like children for an array of reasons, but why, really? They were once children too therefore they need to think before they treat children like poos.
Children are very open minded, and I honestly don't think enough parents take the initiative to spend real legitimate time with their kids. It's not about just being around your kids, it's about interacting. Playing, sharing, learning, and talking most of all. The best thing you can do is to talk to your kids on their level. It can be the simplest thing, but it has got to be there. Once it is, don't hesitate to be goofy with your kids. You don't have to talk to them about big issues or anything, just make sure that they know YOU personally care about what they have to say.
Children's opinion can add value to a conversation and adults can also learn from children. Children see things from a different perspective as adults that can add value to a conversation and if needed to make a decision. Adults need to hear children's needs they are the only ones that can inform us.
Children have opinions and ideas that should be considered and evaluated in an equal style to those as adults. If a child's worlds aren't valued only based off of their age, then they will grow up feeling like their opinions don't matter, which will activate a feeling when they get older of being unable to speak their mind. What will that make the next generation? It'll turn them into quiet, reserved adults. We don't want their generation to end up like that!