Any type of investment is never free from risk, including whether it is a physical investment or a non-physical investment such as crypto assets. So it is highly recommended before investing to do a good analysis in order to manage the various risks that may occur. Volatility risk is one of the risks that can occur in physical investments, but it is also necessary to understand several other risks such as inflation risk, liquidity risk and market risk caused by unstable market conditions that can affect the investment value.
Your wife has tried her best, but I don't think the investment choices are right. Next time, try guiding your wife to invest in Bitcoin, only Bitcoin (not other coins). However, before that, you need to educate her on strategies and a comprehensive understanding of investing in crypto assets to increase the chances of achieving her investment goals.
Why would anyone worry about risks when they are investing anyway? I mean not the level of it, the existence of it, that absurd. Of course any investment has risks, even a simple bank interest gaining has risks, there is no investment without a risk. Of course you can worry about how much risk, that's understandable, but that makes no sense to do, why would anyone do that. It's clear and easier that we can make more money when it comes to higher risks, that should be how it is at least.
Like leverage, if you do the same exact trade with spot trading vs 100x leverage, then yeah, leverage will earn you more, but it will also lose you more as well. That is the most important part and could get you a great return.