People and organizations that:
- Are known to use a variety of numbers (e.g. her bank uses different numbers for fraud alerts, customer service, specific front helpdesk phones, etc, and her medical providers all use different numbers and platforms to send out information)
- She doesn't know how to add manually even if she's told the details for
That's why I'm saying it isn't for everyone. Sure, maybe you can find someone that does have a bank, medical providers, insurance providers, etc, that uses only one number for all phone-based communication and uses no third-parties, but that's not the norm, so for her, that would result in constantly missing bills, follow-up texts, fraud alerts, customer service callbacks, etc.