Bitcoin introduces complexities in two distinct ways. The technology itself is highly complex by design; the complexity that drives bitcoin is what makes the network so secure. And bitcoin besides the technology is a fundamentally new way of understanding money.
The underlying technology that powers Bitcoin will always be complex - it has to be. Satoshi had the following quote, "If you don't believe me or don't get it, I don't have time to try to convince you, sorry" in the early days of building the network. I believe it's vital that those of us who have learned so much along the way and have the time to help others do so. I am a major advocate of ultimately transitioning new bitcoin users towards self-custody and managing their own bitcoin and private keys. I worry a bit once retail adoption becomes very widespread that self-custody will be only managed on the fringes because users are too intimidated to do it themselves - there's an opportunity here to help.