有些事，对错是一回事，禁不禁是另一回事，禁不禁得了又是一回事。

Everyone knows killing is morally wrong, and china has very tough laws against it. Does that stop killing?

For drug/sex problems, 教育远比禁止更有效。If you can calmly teach kids right from wrong, neither is a big problem in my opinion.

Sky is not going to fall. No need to panic like that.