97% of Buffett’s wealth was acquired after the age of 60, and 99% of it was earned after 50. We in our 30s are truly still so young. If we want to achieve true freedom one day, we must never stop learning and refining ourselves. It’s okay to go slow, but we can’t do nothing. 
At the very least, we should have a strong and healthy body
At the very least, we should have a strong and healthy bodyWhen I worked in the industry, we often had interns who were 50 years old, so I think that people who are 30 years old are, of course, young.
Everything depends on the person himself and the ability to accept new things, because I know some people who have been constantly grumbling since they were 20 that they regret that the whole world around them is changing and transforming, they did not want to be chosen in anything. And now they are very far behind other people.
I personally don't understand them because I'm always interested in understanding something new. And I'm glad that the world of cryptocurrencies always provides such an opportunity.