Only last year I phoned my adult ds when I was walking home from somewhere late in the evening and hadn't really thought it through and I started to feel nervous as I got close to a shortcut path I normally use in the day, and realised I couldn't see the other end and I just felt really vulnerable.
I was luck, I had an adult son that I could call and tell him exactly where I was and have him keep listening to me until I got home. Lots of people won't.
I mean, I hope it is as well regulated as they are saying, and it can't be infiltrated by someone wanting to find out where lots of people live alone......
As the article says - it isn't perfect, but it is one more option than there was before they started it.
It doesn't make us any safer of course. It might make us more vulnerable to being mugged. What's it for? To locate a body? God.
Partly about perception, but, should it ever come down to it, someone would know you'd been attacked as it happen and call 999 at that point, giving a better chance of police being able to get to you, than if no-one even knows you are missing for another 8, 10, 12, 24 hours.