I got this
When Miriam tries to touch the tree, Nikolai often tries to intervene (often too aggressively) and I say to him "Don't worry bud, I've got this."
But lately he's started saying "Mom, I got this!" to me instead.
Luckily he's watched my good example (*snort*) long enough to have realized he should be gentle when encouraging her not to touch the tree.
Atta boy Niko.