I keep seeing the question being asked "How should I choose my main?" across the subreddit, discords, whatsapp groups and etc and its usually new players asking for the most beginner friendly character or someone they could play and get to high levels BUT I am of the belief, every character is viable all you really need to consider is how cool that character looks.
The first Tekken I ever played was Tekken 3 and in that I played Eddy Gordo cause thats all I could do then my cousin bought an arcade set and had Tekken Tag in it. I don't remember which one but if you picked Kazuya and Devil Kazuya then upon pressing the Tag button, you would switch to Devil Kazuya and that mesmerized me. Then I stopped playing, I bought Tekken 7 and Played Devil Jin because of the Qudans Video by thescoreesports, I found him cool enough but I didn't like him for some reason, like he just didn't click. Then I picked up Kazuya, even though I sucked, there was something so cool being a guy in a full three piece suit fucking up people.
And the fact that *at the time* he was the only one who had a perfect electric had some sort of a dopamine boost attached to him. I haven't gotten it yet in a normal match so far but I will and I am pretty sure the excitement from hitting that will lead me to drop the combo immediately after