IB course is much more difficult than ordinary foreign courses, with much more homework and much more difficult things to teach than ordinary high schools. For example, economics Inces, the economics department of some universities who have studied IB economics HL can even skip the freshman course and go straight to the sophomore course. IB mathematics HL can be compared with China mathematics. Although not as complicated as China, it is very difficult. Teachers give lectures very quickly, so it is difficult to master them without super receptive ability, and they have learned something that senior high school students in China have not learned. What's the difference between IB and the usual teaching methods? IB advocates the formation of individual active thinking and critical thinking, and teaches you how to become the person you dream of becoming. For example, teachers don't just give lectures, but actually combine knowledge with practice. There are many practical activities to teach you how to use a lot of computer software, write papers and graduation thesis. Many oral presentations, Tok (epistemology) will cultivate your critical thinking ability, and you have to do CAS (creativity, action and service) 150 hours, which are indispensable for other courses. Therefore, the students trained by IB are not only knowledgeable, but also capable and good at thinking and asking questions.
Some IB schools will exchange students with schools in other countries. For example, my school exchanged students with Germany. But that German school is not an IB school. So not studying IB will not affect your possibility of becoming an exchange student. The conditions for becoming an exchange student vary from school to school and need to be determined according to the situation of different schools. And even if you study IB, you may not be an exchange student.
IB is usually suitable for students with strong comprehensive ability, innovative spirit, diligence, strong self-discipline and perseverance. Of course, the English level must be good, because it is all English, the teacher speaks quickly in class and reads a lot of homework. He often writes papers and gives oral reports. If his English is not good, he'd better not take such a difficult course. If you want to learn IB, please learn English well ~ ~
I hope my answer is helpful to you!