No idea, is Google Maps listed as being safe for kids? It even has a default built-in search option to find nearby bars.
Either way, they removed the app from the entire Play Store, not just from kids accounts, or family sharing. Google specifically has as a separate account type for kids, ostensibly for the exact scenario they seem to be claiming is the reason for the removal here.
You really trust a company(google) who warns users about malware from apks(non-google).. and then hosts plenty of unchecked malware in their own store. Im sick of this shit. I have my own friends distrusting me because of what google is telling them.