Kid summer exchange?

Hi guys!
I know it is not the main subject of the forum but since we are spread all over the world, i thought i should check with you too.
So, here is my current project for this summer. I have a 17 year old son whose english could be better. I’ am looking for a familly in an english speaking country who has the same problem with a son / daughter of about the same age, but wants to learn French. I’d like to organize an exchange when i receive the kid for 3-4 weeks and then vice versa during this summer, so they both can progress in learning the langage. If some one of you is interested please let me know before end April. At that date if i have not found anyone interested i will book into a summer school in a familly in Ireland, but i fear thie motivations will be more commercial than cultural. Thanks for your help.