Nearly all of the students I have tutored in math and physics plan to go on to university or have already done so. For some of them, those subjects were merely obstacles to be overcome and then abandoned at the earliest opportunity. For others, math and physics were to be at the core of futures they had planned for themselves. Some have known exactly what they wanted to do with their lives. Others have been much less certain, other than being convinced that it would be something involving science or, sadly, anything that would get them far away from mathematics.
Fortunately for those without a clear idea of what they want to do with their lives, universities offer a lot of flexibility in the early years of many degree programs. The above video offers some very good advice that is relevant to all aptitudes.