Why aren't more people interested in Dhamma?

I read somewhere that Dhamma should only be taught to people who are interested and attentive to the knowledge, but why aren't more people interested in the first place? Dhamma could lead to the end of suffering, which is something most people would be interested in right? Is this because of indifference and thus ill-will and aversion? Is it because of delusion? Laziness and lethargy, or other parts of the five hindrances? And why do people react so hostile when discussing achievements such as having better concentration, more equanimity etc.? Why don't they see it as an opportunity to learn something new? Why is there such a lack of enthusiasm and a drive to search for wisdom?