The is an element of that. In terms of we always done it this way so why should we change, classic old school public sector mentality. But you also have the fact that the forces have some legacy systems that are critical to the day to day operations which haven't been upgraded in years due to right finances and the thinking that if it isn't broken why do we need to fix it.
Because why would we need to replace that legacy system that has never gone down and does what we need it to, even though it is still running on green screens especially when we can buy drones or go-pros for all officers.
I am simplifying but that is the kind of decision making that happens due to people in charge who know a lot about policing but nothing about the underpinning technology.