I think this is what separates successful people from those living in poverty. I'm not belittling the poor. However, those who don't understand the value of money tend to only think of it as a means of exchange they use for shopping. The more money they earn, the more they spend. This is different from people with good financial management. They view money as a seed that, if planted properly, will yield returns. Such people tend to limit their spending and allocate their money to investment instruments or businesses. I have a friend who could be described as very stingy and lives a very simple life. He doesn't like fancy restaurants or branded goods. However, he owns many assets in stocks, crypto, and gold. Interestingly, when I asked him why he lives so simply, he said he initially wanted to live a luxurious life, but found that frugality is much more comfortable and enjoyable, and he doesn't want to change his habits.
There is a difference between successful people and by that I think you mean wealthy people, the middle peaole and poor people. Successful people are not close to poor people and they are not even bound by what you are saying. Been born in the right side of history gives you a edge, this is what man poor people don't have. If you are born in a poor family, the chance of you getting out of there is very slim and if you are not having a formal education may make it worse.
It's people that are in between middle class and wealthy people you should be comparing. Someone that has basic things and leave a comfortable life can take risk to becomes a wealthy person if they have the right plan and has a successful plan, a poor man don't have any money to invest in Crypto or Bitcoin but a middle class person can make that sacrifice with the little they have to buy the things you say and becomes a successful person, a poor person that barely feed don't have resources to buy the things you said.
And that is why I always feel sorry for both the poor and the middle class. The middle class is in the same poverty trap, and any attempt to invest or start a business can be fatal. Now are very difficult times of crisis and the middle class has a very high chance of poverty if the head of the family does not constantly look for part-time work.
And at the same time, you cannot limit yourself to one part-time job, you need several. This is scary and bad. It should not be like this. Those who work a lot should have the opportunity, at least for full treatment of themselves and their relatives.
But medicine is expensive.