Polish-English Bilingual Fun
If you happen to be bilingual, how do you ensure that your children are brought up knowing two languages as well?
The truth is, I don't know. If you're starting late, you need to really want to learn another language.
If you're young, it's supposed to be easy to learn any language. So start them young. Unfortunately, I did not follow that advice and now it's harder to get them interested in learning another language.