I don't think parents in Europe are wary of bilingualism per se. I think they are wary of starting both languages at once. Many speak one language to their chil

I don't think parents in Europe are wary of bilingualism per se. I think they are wary of starting both languages at once. Many speak one language to their child until it speaks reasonably, and then start the second language (in pre-K or K years). There are no right answers - either way, there is a tradeoff. Speaking two languages in the household makes it easier for the child to learn them; on the other hand, it does delay speech. My kid looked so desperate to communicate, I stuck to one language until she was fully verbal, and only started the second language afterwards, making it into a game.