Do you like coffee?
If your answer is yes, then find how many are liking coffee?
If you find more in the statistics, then you are happy that you have like minded personalities, available.
Similarly, many like adult content more. Few like it as a matter of fact.
Few experiment it.
And very few go on doing research about it.
By and large majority of the population like adult content.
For example, I am sure you had visited any one of the adult content hub or website to find out about the traffic there.
So, you also like it.
Like this only , the adult content get alot of traffic.