While this survey was mostly focused on people's use of exchanges, there are some interesting data points in there. Mostly: I'm worried that self-custody is never going to catch on very widely because people are just too afraid to actually hold their own keys.

Kraken interviewed 789 "U.S. crypto holders" for their survey (released June 16).

One result that did surprise me is that 23% of respondents said they used multisig. I imagined the number was quite a bit lower. But it may be that people are including shitty fake multisig like Tangem...