Older people have a lot more patience to invest they are less prone to emotions they are more confident in real life, so they are very careful about investing but young people are very emotional they can't do anything with patience they lose everything by gaining more quickly young people are never able to take high risk.
Yes I agree with you parents usually they will think repeatedly when they want to take an investment and risk is the most important thing they consider when they want to start investing, so if they see an investment that has a high risk then most of them will avoid it, they don't care even though basically high-risk investments can provide high returns.
Patience and ability your risk management determine that whether you'll pay off or not. There are so many people who have lost their control very beginning before taking profits. So, what's the best way to get high returns without taking risk? Creating a safe zone only limited your income sources.