We made a firm rule: one language at home, the local one everywhere else. It felt strict but it's the only thing that stopped the drift. Consistency beats intensity — a little every day, not a big weekend push.
Our kids are picking up the local language fast at school, which is wonderful, but they're already answering us in it at home and losing words in our mother tongue. Keeping the home language going takes real discipline. Did you push it, and did your kids thank you later — or resent it at the time?