It really depends upon your personal goal, or how you want to be seen.
A well rounded person, needs to have exposure to many diverse things.
An expert, only one........but that seems lonely to me.
As a girl, I heard my Grandad say, " jack of all trades, is , master of none".
So, I want to know enough about most things, to stay in an intelligent conversation, and enough about a few things, to be an active partner. There
are 2-3 areas, where I would like to lead the conversation!