That’s interesting. I think learning two extra languages in the UK is pretty common.
My high school was a language college, so we had the option to take more. I did, German, French (as main ones) and Spanish, Italian and Japanese as secondary languages.
I don’t speak them fluently anymore, but have taught my little boy the basics, hello, thank you and goodbye in all five, along with numbers.
A funny story for you; His primary school teacher pulled me and said he keeps singing a song and we don’t understand him. He was counting to 10 in Japanese bless him 
