I think YES, it's important to shift the current mentality.
But I also think self-custody should start simple for newcomers:
  • 12 words are enough
  • generating the seed in a clean personal computer, with basic security connections, with well-known open-source verified software, it's enough (no need for hardwallets)
  • writing it on paper, well hidden, with backup and no single point of failure is enough (metal plates are overrated)
newcomers are scared if they need to learn and go through all the best pratices of self-custody in the first day or even in the first year