Summer College Courses for High Schooler to Bump GPA

I was wondering if anyone has done this at local Community College for Summer after Junior yr at High School to bump their GPA. Please share pros and cons of doing this. Thx

Talk to your Guidance Counselor to see if these grades would even be counted in your GPA.

People do this, and I can’t see any cons, but find out if your school will accept the credits.

Thank you @happy1 and @Lindagaf - I was wondering even if the school does not accept, my understanding is that as long as the course is part of UC approved a-g course it will be accounted for, not sure if my understanding is correct.