I have both a son and a daughter and in many respects, they are like night and day.
When Ellie was 9 months old, you could hear the winds of change: she was starting to scoot about and explore, but nothing was in danger.
With Jack, it’s less like the winds of change and more like a hurricane. Destruction threatens your house at any moment and when the hurricane and floodwaters come, anything that you treasure needs to be at least three feet off the ground to have the best chance of survival.
In fact, if possible, you should suspend everything in your house from the ceiling, creating a three-foot clear zone at the bottom where only items that you don’t mind seeing broken, consumed, torn, licked, thrown or destroyed should go.