Exactly our idea :) And we already got feedback from the Spanish wife of our Dutch friend (still with me lol) in Spain back then. Because she speaks Spanish to their daughter, and he speaks Dutch to her, but she is a bit older than our daughter and speaks them both fluently. She told us that when she speaks Spanish to our daughter (when we lived there so it's been a while now) she really sees she understands her. It's indeed much easier to learn now than in some years, so why not make it a fun day to practice these things.. Later on I may even consider doing this with Spanish too.