Your question has many answers, and not all of them will be wrong because the perception of digital currencies differs from one person to another.
We are in a cryptocurrency community so there will be a preference for privacy, some tech features, security and fees VS ease of use, and simplicity.

So, if your wallet is for beginners, make sure that it is easy to use, safe, supports a lot of altcoins, and then you can focus on the rest of the features over time.