That's the problem it takes time and effort to reverse the damage done and we humans are inherently lazy, always looking for the easy option even when we know it isn't the best. I feel for the Hedgehogs who are one of the best animals to have in your garden better and cheaper than any bug/slug killer but are being assaulted from every angle imaginable including robot lawnmowers. One way to look at it is they won't be assaulted much longer as they are close to becoming wiped out anyway.
Bruce spot on, friends of ours in the village run
Prickles in a Pickle voluntarily and have over a 100 in at any one time. Judy is a nurse so can diagnose and treat the bonfire, strimmer, RTA and Robot Mower victims.
Most gardens have a hedgehog box in them for them to overwinter in, sadly down here with climate change they tend not to hibernate but run short of food so saucers of cat food are around together with fresh water.
Our Son and his wife have 2 acres they rewilded 12 years ago in Cornwall and planted indigenous (Cornish traditional) fruit bearing trees and often deer visit and one day they witnessed a Stoat take a young rabbit and fox sightings common.