Would it be typical for a young Francophone child to make a mistake such as the following?
Voilà mon chanson.
To what extent is memorizing words' gender something that native Francophone children struggle with, versus coming naturally as native speakers?
Based on answers and comments I would like to contextualize. My 4-year old son has attended a French-immersion school since his second birthday and has heard fluent French at home since birth. I was startled when we were singing Je danse le boogie-woogie and he got chanson wrong.