Kimmie,
I understand what you are saying, but I just don't think owning a live creature should work on a learning curve. I purposely didn't allow my son to have his BD until he was older (just before 13th birthday) and had read at least one of those care books you purchase at the store. Not doing so is why, for example, BD's end up with something like MBD. Neither pet store we went to EVER mentioned calcium, vitamins, or that UVB bulbs go bad after about 6 months. They also tell you to offer them veges but don't say anything about only certain ones good as a staple and others are just treats (like mustard greens vs. squash) and don't tell you that regular iceberg lettuce will give the dragon the runs. These are all pretty simple things, but extremely important to the health of the dragon. To me, a store that requires I have knowledge of caring for the animal starting when I get it home is a store that cares about both its animals and its reputation. I would never be offended to be asked such questions. But that is JMHO.
If you were buying it all at once, wouldn't knowing exactly what you needed to purchase in order to properly feed and house your BD, as well as make it comfortable, be good proof of your knowledge? The problem is that those little leaflets in the store that they give you for free are sadly lacking in information. Seriously, if you go in and don't know anything BUT they have qualified people there that can give you a good education in a short time, that is another story. But these stores are sorely lacking in that.
Makes me wonder how these stores would react if one of the more knowledgeable people here offered to give a class on Saturday on BD care, no cost. If I felt more confident, I know I would love to do it.