I generally agree. There's a good trick that works around the majority of the problems of handing out your cell phone number: People rarely do it and most are

I generally agree. There's a good trick that works around the majority of the problems of handing out your cell phone number: People rarely do it and most are not aware of this, but you can use landline or SIP numbers as well for Signal and Whatsapp and probably others, for which neither SIM-swapping nor SS7 attacks apply. Instead of an SMS, you can receive an ordinary phone call, and you only need to receive it once (and can then disconnect your phone [client] again).