For what I know Bitcoin is a savings tools and that's why bitcoiners hold for long term cause of its profitable volatile nature that tends to grow overtime. But depending on some countries that sees it otherwise, some as an investment due to its higher returns and what a view but then Bitcoin has provided lots of opportunities to the economic sectors at large.
Bitcoin is the best form of savings. Previously, we simply kept money aside in the bank or otherwise for savings. That money doesn't grow, and even if it does, it's just by a small percentage that won't be worth much. Then there is the issue of inflation. Your money might be worth less after a long time. Bitcoin does not have any of those issues. Yeah, the bitcoin price might drop, but if you're keeping it for the long term, there is little to worry about.
With Bitcoin, you have savings that can also be an investment. If it grows, you have an investment; if it doesn't, it's a savings and since you're keeping the money for the long term, there is a high chance it will grow.