Feel like I've failed
All people need to take responsability for their own actions whether negative or positive.
As individuals we may have given advice to someone that may or may not have taken up that advice by the person we gave it to.
We cannot be held responsabile for the decision that peson takes it is upon their own head for ,their decision.
Mr Negative you have no reason to feel guilty ,the onus rests on the person making their own decision as to what road they will take.and they will have to wear it alone.