retyopy said:
Or let's say, hypothetically, that I was. Does that lessen the value of my opinion? Does that make my part in a discussion less worthwhile?
Yes and no.
No, because you are a
person, and if you say something worthwhile, then your age is irrelevant.
Yes, however, because your age does matter in terms of life experience. The average 10 year old has extremely little life experience, and, depending on the topic of conversation, has very little reference or education in what's usually being talked about. Age doesn't automatically make you smarter or more wise, but there is absolutely something to be said about life experience. And 10 year olds don't have it.
My grandfather had fantastic advice, having lived through 2 world wars, immigrating to a new country with just the clothes on their back, raising 6 kids when barely having enough to make ends meet, being a cop, working in a troubled youth shelter, and living to a ripe old age. He saw so very much, and was able to teach me plenty. My dad has taught me so much as well, for similar reasons.
A 10 year old can't do that. And that isn't a slight against their age.
They're just inexperienced at life.