In his horoscope, Sun, Moon, Mercury and Saturn have only single digit percentage strength which is indicative of restricted talking faculty. May be by 2025, he could improve if you can give him an equatorial environment like moving to India or similar countries. Give him goat’s milk which could improve his faculties. It is also found that people who use antipregnancy pills and bottle feeding of child contribute to such deficiencies.

You can come for a paid full scientific evaluation of his horoscope which will answer your question.

He will be alright by 2041 and he may have a career in defense services.