I leave mine running without issue. I figure anyone sad enough to want to track me constantly will get pretty bored doing so.
In some cases, having it publicly viewable is useful from two perspectives: (1) people don't have to ring me to find out how long I'll be / where I am / etc and (2) if someone accuses me of being in a place / not being in a place, I have evidence to the contrary.
That said, such material is not intended for, and not authorised for, marketing purposes.
I have other reasons for not using the Google Play store, chiefly among them being they don't accept my non-Gmail-based Google account as being valid. I use the f-droid store instead, and would recommend it as an alternative.