If prostitution were legal, we could regulate it, which would mean having them wear condoms with all clients, getting medical check-ups regularly, and have it in a place where there is security, and the girls are safe. Also the girls would get a fair wage for their work, and not get ripped off by pimps, which is what happens now. I never said STD's would stop, I'm saying you could reduce it dramatically, and I never said legalize it on street corners, the street corner prostitute would become much more rare in my scenario. And the child thing is a strawman, because I never said anything about that, and it is a completely different issue.
Now for drugs, there would not be more drug addicts, and yes drug addiction does ruin lives, but when you can get a prescription for heroin, which is what Oxycontin is basically, don't try to tell me that we as a country are concerned about drug addiction. If we really were that **** would be so illegal, the war on drugs is nothing but a money making scheme, and if you really want to stop addiction, you would get rid of the laws we have now, stop putting people into jail for drug possession and use, and put them into rehab centers.
Also, the number one illegal drug, money, and use wise is marijuana, you legalize that, you get rid of so much crime, and so much violence it would have a great effect on us as a society. Plus all the money we would gain by not wasting it, and how less congested our prisons, and legal system would become. It's amazing that it is not already legalized.