The crypto economy is pretty underdeveloped. There's this exchange which should work for cash-outs:

https://quidax.com/

You could start a peer-to-peer economy using the DashPay wallet to receive and send, and BitRequest for a merchant app. If enough people are willing to do this, it would work (with Quidax for if someone needs to cash out).

Also Bitrefill does prepaid phone and electricity vouchers:

https://www.bitrefill.com/ng/en/?ref=paywithdash