Earlier quoted context omitted.
Lose $5. Seems like a reasonable enough experiment.
$5 * 3 models per day=$15 a day Assume the experiment runs ~250 trading days in a year, consider the worst case they lose all their invested money=$3750. A little more than $5 :)
That said, many hobbies cost more that $3750 per year, and that $3750 is a worst-case scenario. He might even make a profit, and hone skills that might make him a fortune.