This makes sense. My wife and I didn’t start sharing our locations until we had already developed complete trust in each other. It has never caused us any issues, because we don’t have doubts about our trust.

For us it’s just about practicality. We have two kids and are busy with things, sometimes it is just easier to check to see how close she is rather than text and wait for a response (especially if she is driving and I don’t want to distract her!)