In the United States, for example, the vast majority of public schools were segregated by gender in the 1950s. In fact, it wasn't until the late 1960s and early 1970s that coeducation became the norm in public schools in the United States.
In some other parts of the world, such as Europe and Canada, coeducation was more common in the 1950s. However, even in these regions, there were still many single-sex schools, especially at the secondary and higher education levels.
Here are some examples of countries and regions where boys and girls could attend school together in the 1950s:
* Soviet Union
* Scandinavia (Denmark, Finland, Norway, Sweden)
* United Kingdom
* France
* Germany
* Canada
It is important to note that even in countries where coeducation was permitted or even the norm in the 1950s, there were still often social and cultural barriers that made it difficult for girls to access education on an equal footing with boys. For example, in many cultures, it was still expected that girls would prioritize domestic duties and childcare over education, and they may have faced discrimination and harassment in educational settings.