Why wouldn't businesses have landline phones? Mobiles are for a single individual. Landlines are to a single location. If I ring X corp, I don't really care i

Why wouldn't businesses have landline phones? Mobiles are for a single individual. Landlines are to a single location. If I ring X corp, I don't really care if I speak to Bob or Barbara, I often don't know if I want to speak to Bob or Barbara. In the same way I'll email enquiries@xcorp.com not bob@xcorp.com