https://abc7.com/san-francisco-board-of-supervisors-crime-la...
Felon -> “justice-involved person”
Juvenile delinquent -> “young person impacted by the juvenile justice system”
Drug addicts -> “persons with substance abuse history”
Ex-cons > “formerly incarcerated”
"convicted felon" is a smaller subset than a "justice-involved person". Felon implies "felony", which isn't the only type of individual they want to talk about (probably involving things like misdemeanors, diversions).
Same with "drug addicts". The new wording states that the person is seen to be using multiple times, but doesn't make a statement about whether or not they are addicted. They could just like drugs, without meeting the definition of addiction.
"ex-con"... you can be incarcerated without conviction (pre-trial, contempt).
With "Juvenile Delinquent", it's the other direction. Delinquent is a larger set than the new wording, the previous term includes miscreants who aren't in contact with the justice system.
This is more precise speak, it gives the actual definition instead of a broad term.