How it is different from what I described as a career choice? I chose career in building web applications, this is what I am proficient at and I learned it on

How it is different from what I described as a career choice? I chose career in building web applications, this is what I am proficient at and I learned it on the job/on my own. If I would choose to follow Ph.D. I would optimize different things just like your father. Well I believe your father is not proficient at building web applications and I don't think he could be as proficient as me in 6 months. The same for other things I could not become professional football player in 6 months or conduct research in proficient way.