LOL. so the folks at disney are very smart cookies, just walking down main street can be a test of a parents patience, with pretty stores to tempt even the most dedicated budgeters and have you noticed that almost every ride dumps into a gift shop?
anyhoo,
Every one gets a Tee shirt courtesy of mom and dad and then usually we give them $75 bucks to spend over a 7 day period.
Now one of my sons was absolutely great with budgeting his money, he really took his time and picked out what he wanted. My other son wasn't. LOL. His eyes would glaze over and he would start drolling any time he went into a gift shop.
Basically we made them wait until we hit every park before picking up a sovenier (sp) to alleviate any "buyers" remorse and we do encourage them to get items unique to disney.
I'm not the "pre buy" disney shirts simply because for me, buying a shirt at home at a store is simply that.. buying a shirt. Buying a sovenier is more of a remembrance of the trip, so rarely even for myself I've never "pre brought" stuff and pass it off as a souvenier and my kids were pretty smart cookies, the one time I tried it, they knew exactly where it was brought (my kids were 6 & 8 at the time).