“Narcotic Treatment Programs
....
California’s NTPs provide opioid medication assisted treatment to those persons addicted to opiates.”
https://www.dhcs.ca.gov/individuals/Pages/NTP.aspx
Problem is the vast majority of addicts WANT to confine their drug lifestyle. It’s a choice, a bad choice, but nevertheless a choice that the made of their own free will. No one put a gun to their heads and said shoot up or I’ll kill you.