A person's mindset is very instrumental in seeing how efficient he is in thinking about a goal in the future, and of course this mindset involves knowledge, education is an important factor in making them gain knowledge and a good mindset, and from here most people fail to gain knowledge from education, either they cannot continue their education or they are not interested.
Influencers that I do get to watch their motivational videos, and they're all telling me that if you want to succeed you need to first change your mindset. And you're right that it's very important for someone who foresees something in the future with what he does. If his visions and mindsets are contradicting each other, then we know where it's heading. With what you're saying about education, honestly, they're almost everywhere now. The motivations are there and it should start with your own situation, the tools, and resources are also there. They are just needed to be used properly.
Not only mindset but the way of living. There is nothing worth noting that if someone wanted to change he needs to changes the way he do things. Mindset is just a generalized vague word. Let us say the person wanted to get out of poverty that is his plan and his mind is set on that plan. Doesn't change their mindset defeat their purpose of getting out of poverty? At most the best advice is to change his way of living. If he is lazy then be hard working. If he lacks knowledge then strive to learn. If he is shy then be confident. It is much better to list the things need to do than just saying vague stuff like changing your mindset.