What anyone does with their Bitcoin is left to them, so long as it's reasonable in the end. Bitcoin is being used for three major reasons/purposes: Payments, Investing and Trading. Anyone could explore either of them without any issues, but the approach matters a lot. This calls for understanding of Bitcoin before thinking of using it for anything. As this defines whether you will be profitable with it or otherwise.
In as much as I will agree with on that, I also want you to know that bitcoin is not good in trading, the main reason why bitcoin was created is to make online payment easier for everyone. It was later we began to experience new things of which the builder didn't intend to use it in those areas, such as investment and trading, while some are using it as hegde against inflation. Just like you said that what anyone does with their bitcoin is left for them so long as it's reasonable in the end. I think you have just Said it all because we are not in a position to decide what they are going to do with it.