Hello, fellows,
I am not a "Brit" (but speak some sort of English, as an American). If you are not totally disinclined, I would recommend that you check out the English-speaking Christian church congregations in your areas. In Hamburg, there are Anglican, (United) Methodist, and Baptist options, among others. Each of these congregations does its best to find a place for children in Sunday school and other activities, and would provide contacts with other folks with English-only or English/German-speaking kids of various ages.
Please contact me if you wish, or check out the web site I maintain at
unitedmethodist.de.
In addition to contact information and links to other Methodist churches, you will also find links to pages of other denominations and ecumenically oriented churches worhsiping in English.
Our own congregation in Hamburg also has the following web site:
Hamburg's International United Methodist Church.
Perhaps we'll meet at church?
Jim