I mean
you can flash Graphene in 15 minutes from the web browser on your computer
its' dead simple
and install your favorite wallet on it
and you have a convenient signing device with a familiar interface in like an hour
with very little "learning to use" anything
i suppose you also need a strong password on the phone.
but its sure seems like an easier flow for more people than any HWW.
cheaper too.
But you know your mom better than I (not trying to say anything lol)
so your mileage may vary of course,
but it's not shitty advice.