How can I have my future sons go to Eton College in the United Kingdom?

Hi am Alex and I am a 15 year old girl. I currently live in the United States until I can go to college which will be in London. I want to become a emergency medical doctor which makes a lot of money. My future husband will hopefully be a doctor,lawyer,or a conductor. Well when i have children I want to send to boys to Eton give them the best education. I know it is supper expensive but I will save it up for them.