Kids understanding about trading

My girl is funny. Whenever my hubby is attached to the lap top, most of the time viewing about cars and analyzing stocks, she will ask her father if he is investing in stock. I doubt she understand what stock market is all about at only three. We just tell her that Papa needs to make some investment to earn more money so we could afford to get her new toys and milk powder. Since the share market is so bad these days, with most of the share price dropping, I wonder if my brother is making money in his options trading investment.