OP, the mining of coins you are talking about, is it the farming of coins with phones? If it is, it is a complete waste of time; no better payment is involved. That's why people don't believe in it.
After the successful payment of Notcoin, no other mining projects have successfully paid those who participated in their project. It has been different promises of launch dates that are not coming to fulfillment any time soon. Less I forget to add, most mined coins being mined today, are mostly shitcoins, they can't in any way compared with bitcoin