My 5 year old son taught me a very important lesson about having a PIN on your payment methods...
Luckily it only cost me £25 ($40).
Not being a great reader my son just clicks OK to all the boxes that pop up, so there is great opportunity for game manufacturers to dupe unsuspecting parents into spending lots of their cash.
It is a one time only scam though which I really should have thought through but I, along with thousands of other hapless parents, have inadvertently contributed to Zepto Labs' coffers.
Education for parents is the solution IMHO. I got mine the hard way