I've changed my note-taking over the years so that I no longer write down what people are actually saying (unless I want a direct quote), but rather write down what I think about them saying, or I write questions I have about what they say, or how what they are saying affects me. This is not such a good approach in school (trust me, I tried it), but I've found it helpful in church. Thus any notes I post are not necessarily what was discussed in my church meetings, but rather are thoughts I had regarding the subject.
1. Why can't we just see the plates to know it's true? That would make life a lot easier, after all. Why did the plates have to get taken away again? Why do we have to read and ponder and ask?
My answer: Because if you see the plates and touch them, you are understanding physically that they are true. There is a difference between understanding things physically and understanding them spiritually, and you can't gain a spiritual witness through physical means, generally speaking.
2. Children seem to have faith naturally. They do not doubt. How is this possible?
My answer: Children don't realize how imperfect the world is. They don't see all of people's shortcomings, and they don't see their own shortcomings. Children still believe in honesty and fairness. I think it is easier for them to conceive of a perfect being and a perfect plan that would involve eternal happiness for every person. For older people who can see the imperfection in the world, and especially in ourselves, it is harder to believe that such perfection is possible.