We only have a short time on this Earth
We have been given this body and our situation for a reason and in order to experience life, we must experience and explore new things. We cannot determine who we are, what we want, what we like and what we love or understand others, if we do not embrace the opportunities that are given to us.
If something excites us, a new course, an interest in something- we shoud follow through this interest- else we could risk giving up an opportunity to discover an important part of our identity.
That coupled with a desire to learn- the best way to learn is by doing.