system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why are rockets launched at a 90 degree angle instead of a tilt like for missile

Why rocket launched in an upright (90 degree) instead of let's say 45, 65 or 70 degree. Don't projectiles at a 45 degree travel further such for missiles.

Sorry if this sounds like a stupid question.
gpt
Two reasons, 

1. While you’re right rockets need to start traveling horizontally to orbit, they also need to escape the atmosphere, and the thickest part of the atmosphere that’s going to cause the most drag is closest to the ground. So rockets launch straight up to get out of this heavy resistance area, and then start their turn where the atmosphere isn’t going to impact them as much.

2. Also they’re generally much much heavier than a missile, to build a contraption to support the full weight of a Falcon 9, as well as guide it gently up the ramp, all while standing up to all that force, would be outstandingly difficult and expensive. Without giving much benefit. Most missiles that are rail launch are thousands of times lighter than a rocket.