Divided attention is not necessarily a bad thing. Our interests are not rational; they cannot be learned. When a subject catches your attention it is primal, similar to someone you are physically attracted to; a blessing such as this should not be ignored.
There is the possibility of spreading ourselves too thin. Priorities must be made. But a singular focus on a pursuit may lead to tunnel vision. Given the opportunity, finding another pursuit which requires the cultivation of a separate skill will stimulate our minds and help unconventional solutions to problems in other areas of our lives.
Follow your attention, but learn how to focus.