There could possibly be a solution that has to do with legislation forcing game developers to be upfront and transparent about the kinds of purchases in their g

There could possibly be a solution that has to do with legislation forcing game developers to be upfront and transparent about the kinds of purchases in their games. Lots of games, for instance, might have a very reasonable limit on in-app purchases analogous to paying for "the full game". Other games have no limit on what they'll let you buy. It could be done by an independent ratings board (much like how movies are rated for age limits).