For long term yes it's a good idea to invest in Bitcoin for our kids. Instead of saving in banks, investing in Bitcoin is much wiser because of the chances for the money to become huge, in time. Of course there's a risk since it is not guaranteed but if you believe in Bitcoin as an investor and aware of the technology then you'll not going to doubt what lies for the future of Bitcoin.

Anyway, though it seems good to invest as early as possible for the sake of our kids, we know not everyone are capable to invest due to hardship because of the current economy. Hence, this is only for people who are able to save for their kids and not struggling financially while doing so.