T is often a difficult sound to grasp for non-native speakers of English, and it isn’t because the sound is hard to pronounce. Instead, it is because what we think of as the “T sound” is actually composed of several different sounds, and pronouncing the T correctly requires an understanding of the rules surrounding which version to use in a given word.
There are many sounds in English, but people often have trouble with R. What makes this sound harder for some people to pronounce, even into adulthood?
Whether you lisp or someone in your life has a lisp, it's important to be aware of the challenges that can be associated.
A sharper, more “sibilant” production of “s” has become associated with the speech of gay men. The lack of distinction between disorder vs. difference has lead many to associate any type of “s” variation in a male speaker with assumptions of that speaker’s sexuality. However, real lisps, as functional speech disorders, have no correlation with sexual orientation.