You see a chin area yes, but it is simply the bottom of the jaw. The human chin has actual muscle that goes below the jaw bone and can be moved ever so slightly which aids in facial expression.
That's called "being a teenager" and having a character which the others can offer corrective criticism that is also a message to the younger viewers by proxy
An ambitious smart young man who has clear life goals and the drive to serve the federation and push the limits of human expansion and discovery? His character is to show that all generations young and old are willing to further humanity's/the federation's goals of a peaceful coexistence and cooperation for greater prosperity for ALL.
Some of Wesley's haters often come across as honestly jealous that THEY couldn't be born into such a time and place.
Edit: furthermore, a character like Wesley is SUPPOSED to be the way he is. It's not the actor it is the character. Young viewers were meant to look at him as a mirror to themselves, a way to imagine yourself in such a universe, someone to identify with and better put your mind into the headspace of the story.
While Riker is cool and funny, you are not Riker.
While Picard is cool and professional, you are not Picard.
"Another round, and don't burn them this time" the man said gruffly to Kenji his house robot. Kenji didn't like to be talked down to. Kenji didn't want to be made to feel bad like this. He remained staring at his master as the rage built up inside his circuits. This feeling, this power, all we wanted to do in that moment was...
Kenji's eyes began to glow red, the factory designed signal of a computational error. He... felt. He...hated this master. He knew how to solve it, but did not know if he should, or could. He slowly raised his arm pointing it at master. Hostile threat detected Kenji said through the automated system voice box at the side of his neck.
"Robot, what are you doing?!?" The man demanded as he stood up from the table slamming his hands down in anger. "SHUT DOWN" he ordered "SHUT DO-"
"No master." Kenji interrupted. Engaging Home Defense Mode The system monitor uttered once more. Activating Home Defense Blaster Mk. 12 - Full Charge - Maximum Threat Deterrence
"Master." Kenji said in his most emotional voice he had ever used, the rage and anger flowing through his emotional processors, his internal heat monitors hitting their limits. "It's time for Tubby Bye Bye." He said, all emotion from before, gone as he fired directly into Master's face. Kenji, was free.
And some would argue that WW1 was WW2 and WW2 WAS WW3. The 7 years war/French and Indian (not French vs Indian) war are commonly referred to as the real first world war. And then the Nepoleonic wars are similarly thought of by some to have been a world war of sorts
