Unschooler here! My "almost 5 year old" chose that style of schooling for us. I bought all sorts of fun programs, workbooks, etc, she has absolutely NO interest in doing any of them. Maybe its age right now. But I don't think so. She is very much like me. Not good at "book learnin'" but loves hands on, action involved type of learning.
As far as being "qualified", well, I had a 3rd grade teacher who was "qualified" according to the State, but she ruined me. I can also remember some very nice teachers after that, but unfortunately because I was a quiet kid I got lost in the shuffle.
I usually find people who make comments about being qualified and such really know nothing about homeschooling. I find that "unqualified" to even respond to the thread to begin with.