She's wrong about education vs investing, as education itself is an investment. The father wouldn't have his stable job without his investing in education, and the mother would have nothing to invest/gamble in--if there's no risk, then the reward would be what everyone could get.
Qiqi's mum really like to talk huh? I mean it's a bit noisy and disruptive to interrupt when the rest are talking.... And it's interesting that she don't feel remorseful towards her daughter for what she had/not done for her in her young days...