As to converting cryptocurrency to fiat currency, majority of Filipinos used coins.ph (5 million Filipinos and still counting), which only convert BTC and ETH to PHP as of the moment.
Volatility can affect your propose remittance service, e.g., Steamtyme remitted worth 10,000PHP at the time of remittance activity to theyoungmillionaire, however, when theyoungmillionaire received the remittance it went down to 7,500PHP due to its volatility and some conversion fee. Nevertheless, you can try it, mate, and I am sure you can find some ways that might work.
Yeah the volatility of markets is definitely a concern in this venture. Mostly because I would hate anyone to lose value during the transfer period; although the opposite I'm sure would be greatly received by anyone
The blue part is most helpful, as it lets me know what to expect for the timeline involved in people receiving their crypto. This may be a good reason to look into using ETH as opposed to BTC. The biggest risks so far will be for anyone who sends larger amounts in regards to volatility, but more often than not the price should be stable enough to make a transaction.
Again thanks for the information.