Perhaps before panicking we wait and see what is intended. There are many other benefits other than PIP that certainly are abused. Universal Credit, Carers Allowance etc.
My work involved working to get 16-25 year olds into work via into-work Government schemes. There still are several for young people, not as generous as they used to be but available such as apprenticeships, work placement plus college ( like the old YTS) and T training. Most FE colleges run these schemes. We also used to do very effective retraining schemes for adults where, whilst on them, they kept their benefits plus a training allowance. It would be good to bring such schemes back. We also had job clubs which were very effective in getting people (who wanted to work) back into employment.
I remember talking to a middle-aged Chinese man who told the rest of a group of long term unemployed that in China, if you did not work you died! A lot of those who had not worked for six months or more had lost their confidence, were uninformed on how recruitment currently worked, how to get through an interview and in is amazing that with help, encouragement and some training, many succeeded. If you are living or just about managing on benefits, it is a big step to take to make changes that will rock th boat. Once off benefit it is very long-winded to get back in them if things do not work out. We found that few were work dodgers, just unfirtunates,