Having lived in different countries I can tell you one thing: some people will make it regardless of their upbringing, advantages, free healthcare etc. Other people can be born in a castle and still achieve nothing. I’ve seen many people become successful with everything stacked against them. People born really poor in third world countries with zero connections, zero education and zero money, who worked very hard and were smart about seizing oppoertunities. So, yes, certain things might help you but successful people can make it with or without them.