Every year migrants around the world send billions of USD/EUR back to their families.The cost of sending cash via Western Union and Money Gram averages 10-20% in fees. However bitcoin is emerging as an alternative which offers lower fees and faster payments.
Bitcoin also helps allot for countries with high inflation to store value in Bitcoins.
Bitcoin helps for millions of people worldwide.
How bitcoin helps for your life?
this is only true if those people are getting paid in bitcoin so they already have bitcoin in their hand to send oversees to their families, then you are right it is the best option available because of the fees.
but if they are getting paid with fiat, then want to send bitcoin they first have to buy bitcoin and buying it will cost a lot of fees on exchanges (the fiat deposit fee + 0.2% trade fee) then their family have to also sell bitcoin for fiat and pay the same 2 fees.
the total fee they pay can be big too.