It depends on how you see Bitcoin.

Some see it as a currency where it's main purpose is to be used to pay for different transactions. On the other hand, some people see it as an asset where they will hold it until a certain amount of time, and will sell it when it reaches their target (like when it reaches the price or the time). Aside from these 2, there are also people who see it as both a currency, and an asset, and I'm one of them. I've been using Bitcoin to pay some of my online transactions for years already, but at the same time, I've been holding some Bitcoins for long term.

If you're opinion or you think that Bitcoin is a good coin to hold then there's nothing wrong. Is it a positive mindset? Yes it is I guess because you want to hold Bitcoin hoping that it will increase after 3-5 years or even more.