here is one reason. People would get their goldcoins and sell it for BTC which will crash the price..so there is no point because it'll screw up the market everytime someone gets paid. It would be similar to shooting yourself in the foot.
plus btc price is more reliable than crypto.
This is correct. ^^^
We would like for workers to decide for themselves how to spend their money. If they're smart, they'll buy Goldcoins.
... so far I've hired two new workers today.