I do not understand yet how this will help migrants?
Low transaction fee and direct send to their family without any middleman or whatsoever. All-in-one bills payment which is convenient for most of the families in need.
If you just read their whitepaper you will understand it unless english is not your first language and you are having a hard time to understand most of it or if you lack business knowledge but don't worry they have video tutorial on how lala works in their website which is uploaded on youtube.