This is really true of any organization. Even volunteer organizations.
We are facing this, to a degree, in the construction industry. Too many old guys leaving, not enough young ones coming in, and even if there were the old ones are leaving at a higher rate.
For us, I see this as a means to innovate and address our manpower issues in new ways.
I wonder if law enforcement isn’t going to have to start to do the same. We both have similar issues in that (currently, anyway) we ultimately need a body at the front line.
Very few organizations change willingly, or proactively. Entire industries even less so. They do so out of necessity.