Why are things so complex for some people and so simple for others? Many reasons. I want to touch upon one.
Say you have two identical puzzles in front of you. On the left is a 2,500 piece puzzle. On the right is a 2 piece puzzle. Which puzzle is easiest to assemble? Obviously the 2 piece puzzle. Sure you may say the person with only 2 pieces has an incomplete puzzle but you miss the point. The point is they don't see it that way, they see a complete picture with 2 pieces.
The less knowledge someone has or the more ignorant a person is the simpler the solution is for them. Less knowledge means few puzzle pieces. Want to make it hard for them? Pick up their 2 piece puzzle and take a pair of scissors to it. In other words drop some knowledge on them. Make their puzzle more complicated.