i wouldnt expect young children to learn how to walk by watching people walk on a screen, regardless of if its a real person walking, or an ai animation.

the real world gives way more stimulus

watching the animations might help them play video games, but i again imagine that the feedback is what will do the real job.

even for the real ladybug video, who says the behaviour on screen is similar to what a typical ladybug does? if its on video, the ladybug was probably doing something weird amd unexpected