Noooooo! Don't give babies mango! It will end up costing you a fortune LOL.
I made the mistake of feeding my kids mangoes as babies because my parents had a massively prolific tree in their yard. Now they no longer live there, it costs me a fortune each summer. My kids can seriously sniff out a mango from 100 yards, even those that I smuggle in for the husband and I.
I have now vowed to never introduce them to oysters so I can have something all to myself LOL.