It depends on what you invest in. A solid crypto project should steadily grow over time, while scam projects always end up taking the investors' money and disappearing. Be careful of what you invest in.
We all know that it doesn't work like that every time right?
Cryptocurrencies with good futures might be great but in the end, they still usually die. Investors leaving after getting their profits, bounty hunters sometimes sell their cut after receiving it, it is easy to crumble when that happens. We can't stop people from expecting continuous growth since it is the reason why they are here but they should also know that Bitcoin and other cryptocurrencies are volatile.
I agree with you, it is good to expect a continuous growth atleast majority of people are here because of making profits and not because of the vision behind bitcoin and other cryptocurrencies but nevertheless, we should always know that the volatility of cryptocurrency is the main reason why we can't always have a continuous growth. The market will always be subjected to the force of demand and supply.