In a highly developed country you'd expect to find that...
• everyone has access to clean safe water, and electricity
• all young people, like you, go to school
• there is no extreme poverty
• people who can't find work, or support themselves, get help from the government (for example, help to pay the rent) there are good schools, and clinics, and hospitals
• there are good transport links (roads, railways, airports)
• shops sell a big range of goods, from all over the world
• there's a wide range of other services (like gyms, cinemas, theatres...)
• everyone is treated equally
• women have as good a chance as men, to earn a living
• the % of workers in farming is low.