Greetings @gandhibaba, very interesting your post, I remember a little the situation as the one that is currently living here in my country (Venezuela).
It is impressive the figures that result from the exchange houses or the companies that make the function of intermediaries. And taking it to the clear comparison that you give it is more than evident that they would obtain better benefits (for the people who both send and receive remittances) to make these operations by bitcoins.
But certain things must be taken into account, for example educating people on all that is bitcoin, wallets, how they work, etc.. Here also in any case I think that this proposal would be favorable as well, but we find the same limitations.
Since few are those who move in this country with crypto currencies, (taking into account the total population), although from a time to here exponentially increased the use, the same does not reach everyone.
And more than anything try to raise awareness as you say, here are also people who prefer to spend the remittances on alcohol rather than doing something that really serves him (as food or some repair to any good), or why not make a small investment in crypto currencies.
Truly, if a very interesting proposal and God willing people grab conscience.
Without more than saying thank you for reading my comment, and I say goodbye wishing you a happy day, evening or night.✌️