My first son is now 7. As a toddler, he could care less about all the black naim boxes. He enjoyed music - but didn't give the black boxes a second glance. Rega boxes, with their silver buttons he found interesting - he would go press them repeatedly - so Rega had to go.
Baby#2 is now about a year. He loves pressing the buttons on the 552. And pulling the volume know off the 272.
I tried to put a grille in front of the Naim system. He loves to rattle/shake it.
I am afraid the big system will have to be transitioned into the study - and I'll have to put a UnitiQute in place till the kiddo becomes a little older.