Should morality be legislated?

[Weltall]

Gambling is a tax on people who can't afford to pay it (lower-income people, that is). As such there are major moral problems with gambling... still, as a major source of state revenues all over the country, it's going nowhere, that's for sure.

But it is a tax that is completely voluntary. Lottery ticket sales aren't mandatory. It's probably the clearest-cut case of where morality should not be legislated.