Mexicana If You Have Traveled With Babies In Mexicana Airlines Then I Need Your Help?

If you have traveled with babies in Mexicana airlines then I need your help? - mexicana

I travel with my baby six months to Mexicana Airlines within the next month and I want to know if my baby can have his own luggage, so you do not comply with things like diapers and things in my hand luggage. I know I am going to British Airways, but I do not know whether children should have their own future. Help me if you can. Thank you.