[dylan604]

Because it starts with a $2 hat, but quickly escalates into $2 hats 3x a day or even more expensive perks. Once you give into a kid about making purchases, it's a much harder fight to say no the next time.

These games are designed on emotional responses in kid's brains just as much as FB's algo for its feed is.

[Jarwain]

Thus his comment on "limiting purchases for finance lessons". Give them a budget, let them do what they want with it, teach them that impulses are controllable and that there are tradeoffs, etc.

[EricMausler]

This is a trend I've been noticing, which doesn't seem very surprising when written out. Parents who try to approve every purchase end up in a never ending onslaught of requests compared to parents who simply give their kids money and let them spend it however.

[RobKohr]

Once you give a mouse a cookie...