That's why you have socket covers.
If you have a particularly clever toddler, they don't work at all
. In fact, they may find it a fun game to pull them all off!
My youngest sister intentionally stuck her finger in a socket twice. Because once is a fluke, twice is a coincidence, and three times is a pattern. I think after the second time we must have put those covers in, and laziness overrode curiosity.