Very true. Not keeping it simple increases the probability of losing your funds. I think we ourselves are the greatest threat factor.
I find the multiple backups difficult. If you have kyc bitcoin and non-kyc bitcoin e.g. on different hardware wallets, including a passphrase and 2 backups of everything, rhen you need to backup 8 pieces of information of 8 locations. That's too much. How arw you dealing with this?