It’s hard for me to understand how others think about the world around them when I read things like this. I use probability intuition all the time in daily work and personal life.
Of course they should know what causes seasons if they had payed attention in class.
I wonder how they reacted if you'd ask them about the hemispherical difference in summer/winter, e.g. how can the southern hemisphere have winter when the whole earth is nearer to the sun...