PANews reported on June 15th that, according to The Block, Trezor's Chief Business Officer, Danny Sanders, stated at the BTC Prague event that primarily holding Bitcoin in ETFs is one of the industry's "worst outcomes" because it undermines the principle of self-custody for Bitcoin. He noted that there are approximately 600 million crypto users globally, with only about 10% choosing self-custody, and only 12 to 13 million of those using hardware wallets. Sanders believes that the barrier to self-custody is more of a psychological hurdle than a technical one, and the industry should focus on reducing the difficulty of self-custody through more user-friendly product experiences, educational tools, and backup solutions, rather than encouraging users to rely on intermediaries such as ETFs.