I don't use any illegal drugs, but the drug laws are unjust and I don't think people who break them should be considered "morally wrong". It can be irresponsib

I don't use any illegal drugs, but the drug laws are unjust and I don't think people who break them should be considered "morally wrong". It can be irresponsible, in that a parent should not be engaging in activity that can lead to jail time, but it's not "immoral" and these laws shouldn't exist in the first place. The "drain" you speak of is the cost of drug prohibition, not use.