At this point there's a strong argument that the interface is the whole point
Sure, most of us would love it if we could go to a dedicated web page, fill a tailor made form or send an email and be done with it, but that requires some knowledge (And forethought) to both set up, operate and use
And you may argue that people should know, but as any Tier 1 tech support, will tell you, some people really just don't know
But since IM is basically required to be a functioning member of society even if you never have had to fill paperwork in your life, people that don't care or don't need to care just use what's already familiar, with the secondary effect of every (Whatsapp) business having an assumed mimimum difficulty curve, just ask them and both of you will figure it out
Sure, most of us would love it if we could go to a dedicated web page, fill a tailor made form or send an email and be done with it, but that requires some knowledge (And forethought) to both set up, operate and use
And you may argue that people should know, but as any Tier 1 tech support, will tell you, some people really just don't know
But since IM is basically required to be a functioning member of society even if you never have had to fill paperwork in your life, people that don't care or don't need to care just use what's already familiar, with the secondary effect of every (Whatsapp) business having an assumed mimimum difficulty curve, just ask them and both of you will figure it out