fwiw in the US, typically even extremely messed up teeth don't require removal to fix with orthodontics. Some ortho places will advocate it because it's easier. But if you get a few quotes in a big city usually someone can do it without pulling.

Wisdom teeth often do require pulling cus they literally don't fit (idk if this is an evolution thing - were people losing teeth normally enough that a new one coming in wasn't overcrowding?)