none of that IMHO those are smaller issues , lack of adoption is driven by complexity and of course price volatility
people do not want to know about cold wallets, 24 words seed phrases , UTXO, blockchain , bip110 , forks... that is why the ₿ etf's are so popular , let's be honest if you are not tech savvy bitcoin is hard to understand we need simplicity , more shops offering ₿ as a payment integrated like it was always there , more products aimed at regular people , my "dream" is Apple integrating some kind of ₿ wallet right in your phone that would be a massive push for adoption, a nice little spot next to Apple pay that lets you buy sell and spend sats like it was nothing all in plain english with a cute little icon