Link Location Tracker Tools For Sharing Location?

Oh my, thank you both for this helpful information! I’m a bit overwhelmed by all the options if I’m being honest. I’m mostly wondering about keeping my grandchildren safe when they’re visiting. Is Glympse the easiest one for someone like me who isn’t very tech-savvy? And I’m a bit worried - can these links be shared with people I didn’t intend? Like if I send one to my daughter about the kids’ location, could someone else see it too if they got hold of that link? I just want to make sure I understand the privacy part properly before trying any of these tools.