technically my first language is english, but i also grew up speaking portuguese and spanish.
although people say i speak portuguese better, i see the advantage that i can communicate with most of the americas. (except for those who don’t speak either language or canadians who only know French)
Comparing idioms is fun. “Great minds think alike” has an equivalent which is literally translated as “Idiots have similar thoughts”. Kinda reflective of the cultures too: self congratulating vs self deprecating.
My mother tongue is Afrikaans (a sister language of Dutch) but I’m fluent in English, in a lot of ways my English is better than my Afrikaans because all the media I consume is English and my job has mostly been in English.
I love my mother tongue and I’m more expressive etc in it, it’s also allowed me to land a job that’s in the Netherlands, because I could learn Dutch really quickly thanks to it.
Both languages have been so valuable to me, I hope to one day expose my kids to a few different languages from a young age