Re: Define "regularly"
"Apart from what happens if your phones get lost or stolen, what happens if any one of the battery, charger, charging cable, or the phone itself packs up. You may be able to get that replaced in short order while you are at home, but can you do that when away from home?"
I haven't lost a phone in twenty years (apart from a work phone I didn't use for a few months, and then found a few months later)...
The battery lasts me for several days, and there are various places I can boost the charge if I need to...
The phone is unlikely to pack up at random. If I'm away for any significant length of time I'll have the wallet with me, but the 'pick up on the way home' can always be delayed if needed.