[nkrisc]

I really do not think the creator of this site is suggesting that children invest in the stock market. After all, how exactly does a 1 day old child do so? Instead, I think this is just an interesting tool demonstrating a "what if?" scenario.

That said, investing a dollar a day on behalf of your child and tracking the progress of the account with them over time would be a cool way to teach them about money. You could even give them the option of instead of receiving some portion of an allowance, invest that as additional money into the account. There's all sorts of possibilities.

[sadkingbilly]

Instead of $1/day, do $365/year to limit transaction fees.

You could even offer to let them withdraw the dividend each month as an allowance or let it reinvest.

[nkrisc]

Yes, practically speaking that'd make more sense, but you could still frame it as a dollar a day for a child.