I found your article “Everybody’s talking” most interesting and inspiring (Magazine). Although the circumstances outlined differ from mine (growing up in rural Wales in the 1950s), I see many parallels with issues and concerns raised by parents whose first language was not English.
I remember the debate among adults as to whether they should speak English or Welsh to their children. The arguments centred on whether it would confuse the child and prevent successful language development and, anyway, you “needed English to get on” in life. Welsh was widely seen as a dying language. Thankfully, that has been assuredly disproved.