Hi Lois and Coco, welcome to the site.
I have a 12 week old chocolate cockapoo called Rosie and also have a 2 yr old son (and a three year old daughter), so I'd be very interested to hear how Coco is getting on with your son! My problem is to do with jumping up and pestering them at the dinner table. But then I do have a child's size dinner table for them, which I guess is also cockapoo puppy sized!
I hope you're enjoying Coco and I hope you can get some pictures on here soon - we'll all just keep pestering you otherwise! When I first started, I couldn't believe how many people were asking to see pictures of Rosie, and now I do the same!
Louise