No, the school system in the UK can vary slightly depending on the country. In England, Wales, and Northern Ireland, the school system is fairly similar, with students typically starting school at age 4 or 5 and progressing through primary and secondary education until age 16, when they take exams known as GCSEs. In Scotland, the school system is slightly different, with students typically starting school at age 5 and progressing through primary and secondary education until age 16, when they take exams known as National 5s. Additionally, in Scotland, there is a different system of higher education and qualifications compared to the rest of the UK.