If Cisco training is your aspiration, and you've not yet worked with routers or network switches, you should first attempt CCNA certification. This will provide you with knowledge and skills to work with routers. The internet is made up of hundreds of thousands of routers, and large commercial ventures with many locations also need routers to allow their networks to keep in touch.
Music education is sadly neglected by many public schools these days compared to several decades ago when it was firmly entrenched in most elementary and middle school curriculum. Other subjects are considered more important areas of interest, like Math, science, Geography, English, or computers. Many parents opt for private music lessons for their children as the schools will not offer music, and it can be expensive paying for private lessons.