Yes, because there are multiple Romance languages spoken in Spain, and they’re all “Spanish” to people who live there. Castellano is the one spoken in Madrid, so it’s what the rest of the world thinks of as Spanish, kind of like how Mandarin is often referred to as Chinese even though other dialects are equally Chinese.
Well to be fair: Some regions in Spain really like to prefer to call it “Castellano”.
That’s the name used in the language itself, in English they would mostly use “Spanish”
They call it español here in Colombia. I have heard spanish referred to as castellano but not generally from the locals here.
Indeed, it’s more used in Spain to differentiate it from Galician, Catalan, Basque, etc. In South America there is no need for that
In Paraguay they call it Castellano
Yes, because there are multiple Romance languages spoken in Spain, and they’re all “Spanish” to people who live there. Castellano is the one spoken in Madrid, so it’s what the rest of the world thinks of as Spanish, kind of like how Mandarin is often referred to as Chinese even though other dialects are equally Chinese.