Rolling dice is easier than filing your taxes. The problem is not the difficulty of secure seed generation itslef. It is the lack of knowledge paired with no obvious path to obtain that knowledge.
Most people who decided to use dice were either lucky, because they found good advice when they first set up their wallet (it's luck because they had no ability to actually verify the quality of the advice they were given at that point). Or they got educated enough by passively consuming content. If you listen to your 40 hours per week of podcasts you might stumble upon enough self custody discussion to make an informed choice. But I assume the number of people who actually took the time to do a proper deep dive before choosing their first setup is almost zero.
My hope for the future is that we will get options to purchase insurance against unsecure key generation. The insurance providers will have a financial incentive to quantify the security of each method of key generation to accurately price their contracts. Based upon their research they can design guides that their customers have to follow during setup. These of course would be as easy to follow as possible because the providers are interested in making their product usable for as many people as possible. And again, rolling dice or other methods of real world entropy generation is not that difficult.
Once these well documented, easy to follow best practices exist everybody can use and benefit from them, even if they are not buying insurance.
