Bitcoin has lot much stuff to learn not just the wallet. See the "Development & Technical Discussion" section and one can find there is lot much to learn in bitcoin like ECDLP, secp256k1, digital signatures and more. If one is interested in learning the underlying technologies then he is welcome to do that along with investing in Bitcoin. Since it will be fun to see how your money is stored and secured on Bitcoin Blockchain.
Agree that there can be a lot of interesting things that people can learn about in relation to bitcoin, and some of them relate to technogology and there are a lot of other areas too, in order to become more and more familiar with bitcoin as we invest into it. Of course, people are busy with other things in life too, including their work, family, hobbies, and so they might not always have time to fit in learning more about bitcoin, which surely can help them feel more comfortable with it.
Just like we have two ways of accumulating Bitcoin, continue to invest small amount regularly or go bullish in accumulation.
We have three ways of buying, which is DCA, lump sum and buy on dips.
We have other ways to accumulate bitcoin, such as work for it or mine it.. and perhaps trade... ..or steal it.. .. but I think you were referring to accumulation in the form of ways to buy it?
Likewise, one can follow a strategy where we can give small time to our area of interest in technology part of bitcoin or give lot of time studying or exploring that feature. The later one will lots of time and effort and in that phase one has to sacrifice time given to family, friends, hobbies or other stuff. I think best is whichever technical area you choose, just give small amount of time regularly to enlighten the beauty of what lies underneath the beautiful Bitcoin.
For sure bitcoin has a lot of angles in terms of learning about it, analyzing it from various angles, spending time and energy, or attempting to share what has been learned with family and friends.