for most people owning bitcoin aims to make a profit. even though the holder is still aiming for profit, it's just a long period of time. I think it is only natural that people choose to profit from bitcoin and will not be able to stop their sales
And when you take profit, you have sold already
I don't think holding forever would still be profitable since cryptocurrency especially Bitcoin is volatile. I usually set a certain goal and timeframe and sell my holdings once I reach it. I don't count my holdings as my money because anything could happen anytime and I could lose it if I wouldn't be skeptical.
It won't be forever if there's a timeframe but I think these days when we say forever, we're telling someone that as another meaning of for a long time.