If bitcoin had a stable price, i'm sure bitcoin will become more popular than before. Because many people will start using bitcoins for invest their money into bitcoins.
as you can see that so many people here doing trading as their side job and what makes them interested into bitcoin is because of its volatility,this volatility behaviour is indeed such a big problem to implement bitcoin to be payment option or even make it as primary currency but it's also attract trader to get into crypto world