Young animals (including humans) have no survival instincts. Wonder why?

Mother tries to save her two daughters from a venomous snake in Australia pic.twitter.com/UYLtsIuk00

— Wild content (@NoCapMediaa) March 26, 2025

Little girl knew enough to get away from the snake but not enough to properly evade it. Young animals, including humans, have no survival instincts. I wonder why? Seems like the creator would have built that into the biology in order for the young to get old.