There are several arguments against cryptocurrency becoming a mainstream form of currency:

1. Volatility: Cryptocurrencies can experience wild price swings, making them unsuitable for everyday purchases. Imagine buying a cup of coffee and the price going up or down 10% by the time you pay.
2. Lack of intrinsic value: Unlike gold or the US dollar, cryptocurrency doesn’t have inherent value. It’s worth is based solely on what people are willing to pay for it, leading some to call it a bubble.
3. Energy consumption: Mining some cryptocurrencies, like Bitcoin, requires vast amounts of energy, raising environmental concerns.
4. Regulation: The cryptocurrency space is relatively unregulated, which can make it vulnerable to fraud and scams.
5. Professionalism: Compared to traditional finance, the cryptocurrency industry can be seen as less professional, attracting some less reputable actors.

However, it’s important to note that cryptocurrency is still a new technology, and it’s constantly evolving. Some argue that these issues can be addressed over time.