I'm not 100% sure where to share this, so if I've put it in the wrong forum please do feel free to move it =)
I came across this today and I thought that it might be useful for some of us. It's a free SMS based service (though it can be upgraded if the other plan suits you better) that provides a level of safety when out and about. Basically, you set a time and let it know where you're going and if you don't check in within 5mins. of the text it sends you then it'll send a text to your emergency contact asking them to ring you.
I have nothing to do with this org. and I don't mean for this to sound like an advertisement at all, I just know that even the thought of having access to this service leaves me feeling a lot safer and I really hope that this or something like this can help others feel safe too.
So, yeah, here's the link - https://www.kitestring.io/faq and more info. about it and I really do hope this can potentially help some of you in feeling a little safer =)