(Concern) Timing of orthodontic treatment

I'm already quite an adult now.. haha I'm leaving this message to ask about the timing for orthodontics. Actually, I have a malocclusion, but it's not that severe, so I think I've just been living with it. These days, if I only had one or two children, I would have paid more attention to orthodontics from a young age, but in the past, unless my teeth were really abnormal or there was a serious problem, getting braces was a difficult thing. Of course, it depends on the situation, but that's how I felt. Since I have many siblings, I think I had fewer opportunities to receive treatment...

While orthodontic treatment is most effective when done during childhood, I wonder if many adults also undergo orthodontics and until when it is possible. There are also some prejudices about orthodontics, and since many adults find dental clinics the most frightening, I hesitate even more...