Three hots and a cot. Top grade training in whatever technical discipline you choose, assuming you score well on the ASVAB.
Decent pay. You won’t get rich, but if you use the brain your parents gave you and don’t exceed your means, you can save a bit of money and live a decent life.
Travel opportunity I lived in 6 different countries. I saw/visited 19 more. Spent time in 27 US states