You can find volatility in all markets, big or small volatility only.
It is simply impossible to avoid volatility. Volatility is a part of the price growth.
Volatility is key for traders and investors to get profit from their trading or investment. Without volatility, we will have a stable market that can be considered as dead market that won't benefit anyone.
Yep. People are interested in crypto investment because of the high volatility. If there is no volatility, people should prefer to invest in Gold and lands. Sure, people will be difficult to take profits if the market is getting stable. No volatility means no profits anymore, so crypto market may be left by people.
The big difference between Bitcoin and altcoins or traditional assets like stocks is with Bitcoin, you will not have things like depeg or bankruptcy. You might have risk to lose money with altcoins and depegs, bank stocks, bank savings and bankrun, bankruptcy. If you choose Bitcoin to store your money in it, you will be safe. It's not 100% safe because there is always risk so is Bitcoin, but it's safer in my opinion, while you can have good chance to get very good profit.
Note that investing in Bitcoin is also risky. However, the risk is smaller because Bitcoin price history is quite clear and it is like the main coin in crypto. People will always favor Bitcoin, the demand on this coin will be always good. So we don't need to feel worried about the demand on Bitcoin in the next years. Sure, no 100% safe, we always can get losses if we choose the wrong way in investing.