My mum did it. Moved across the country (ill advisedly imo) and we had absolutely no money spare, I know that because even as a child I knew they were in serious debt and they were always on the phone to the bank. I used to have to walk 8 miles to school and back because I couldn't get money for the bus. My mum worked from been a cashier in the early 2000s to being some type of national manager now. She earns a very good wage. So it is possible, but it took her a long time. It took her about 20 years, but she did it. I would say my mum is an exceptionally driven person (rightly or wrongly)
I would say I'm technically in poverty - my partner can't work due to illness and I'm a student. We've never had money so we feel comfortable but by averages I think most people word struggle on what we earn. All going well, I'll graduate in a four of years and be qualified for jobs which are £50,000 - 70,000. I think education is the best option to do it, with the catch it needs to be the 'right' education. I studied previously with a qualification which basically only allowed me to be self employed. I had plans to do so but decided against it because the two times I was close to pulling the trigger, lockdown happened and then energy bills rocketed with no contingencies in place for business. I planned to use a loan from the Princes Trust to start up
I feel like the majority of successful businesses are started by rich people from the people I know who have started business and been successful Vs people who started it and failed