Maybe the 'hold' and 'bitcoin is a crazy investment' mindset is still too strong, especially with how bitcoin is marketed to new users as a 'quick rich scheme'. Start educating them with what is sound money and why bitcoin is the perfect candidate for that and I think there will be more users who'd use bitcoin to pay their bills.
and maybe they will continue to do so , the bitcoin utility as a payment processor is fade away in my place , people prefer to consider bitcoin as an asset to store value and hoping for crazy profit in the future just like the other day when it skyrocketing 10000%!
that is a real case in real environment that what people feel about using altcoins more convenient as a payment processor rather than use bitcoin.
stable coin still have a high transaction fee like $5 , i think people won't consider it seriously as altcoins competitor because with altcoins you can pay $0.001 as a fee and it delivered in a couple secs.