The price of bitcoin is regularly fluctuating, so you might get $100 worth of bitcoins now, $50 or $200 worth of bitcoins tomorrow, who knows? So, do you prefer a currency that is more stable, like cash (USD, EUR...), or do you treat bitcoins as a currency, for investment to let it grow?
State why you prefer your option.

I think it is still best to keep our money in fiat becouse use bitcoin in regular basic is not so easy I still have to convert it into fiat first. But keep money in bitcoin is good too. So I just need to make a portion to save my money in fiat or bitcoin. It the proportional percentage is 10 % in bitcoin and 90 % in fiat. Becouse of bitcoin is good to for investment so I still need to keep my money in bitcoin. That is the best portion, isn't it??