We have lived in Spain for many years and have 2 DDs 5yo and 2yo.
Our home language has always been English. The DDs both started full-time Spanish nursery at 2yo. We are considering moving back to the UK next year and I'm wondering if we should switch our home language to Spanish so they dont lose it. It's DPs first language but he speaks and reads to them in English 99.9% of the time.
I've read that it can be at best difficult and at worst traumatic to switch languages when kids are small.
Have any of you done it? How did you go about it? Cold turkey or a gradual over-lap?
Was it successful?