I am a cautious investor because like a ton of Canadians I am not diversified enough with a huge part of my equity being my house.
If I lost all my other investments I would still have my house and have the potential of slowly rebuilding some of my other equities.
If I lost my house, the income from my other equities wouldn't let me buy my house back in today's market. You can buy or sell a few shares of XYZ Inc at a time within your comfort zone. With real estate it tends to be an all or nothing proposition and the "brokerage fees" are brutal.
Some people are cautious by nature others by necessity. One also has to get a true feel for their investment savvy. Reading a book by Warren Buffett doesn't make you Warren Buffett.
People under 35 years old may have heard their parents talk about the 2008 meltdowns or the 20+% mortgages of the early 1980's but they themselves never actually got the punch in the face. As a kid, I had neighbours that went through the depression of 1929 and it shook them to the bones. We have been so prosperous for so long that one has to wonder about another massive correction.
Covid 19 is an example of an out of the blue economic earthquake. I started a thread just under two years ago and it's amusing to read the earlier comments.
Coronavirus "Don't get your shorts in a knot"
What is also very interesting is that the economic sky didn't fall, for everyone that is. The rich got richer. The poor got poorer and the middle muddled along.
How is the next ball going to bounce? Will it affect everyone, just you or everyone except you?
IMO the most important factor is how the individuals involved handle set backs. If you lost everything do you shake it off and start rebuilding, crawl under a rock or into a bottle? How does your spouse think and how would they react?