Lots of those people become tetralingual because they have time left over the three languages that are taught anyways. E.g. Russian and Estonian as native langu

Lots of those people become tetralingual because they have time left over the three languages that are taught anyways. E.g. Russian and Estonian as native language, English plus a fourth language from school. Those who do not have a bilingual family only learn three during the same time. E.g. Estonian, English and Russian. I kind-of envy the first group of people because it's cool to be able to access so many spheres of culture, I often use Google Translate to try and get a glimpse of Russian forums for example, it's just very different and so useful because of that.