Well, in practice, specialization usually means focusing hard on one subject (or two related ones, like science and math) to the exclusion or vast minimization of others. Especially for young kids who have a limited number of hours in the day for school, particularizing early usually means you have to give up time spent on some other area of study.

And I'm not sure what you're getting at with the poetry. Writing one sonnet is definitely NOT specialization. Doing nothing BUT writing sonnets is specialization. Big difference.

Kriston