I can appreciate LLMs for some use cases, but writing emails for the user is the one that really baffles me. It's one thing if you don't speak English well and could use some help making yourself understood, but the amount of native speakers using this is so strange to me. How does this help you? If you can write to the LLM telling it what kind of email to write, you might as well just write the email.
She uses chatgpt for such with appropriate checks afterwards, all the time. It saves her tons of time, and time is money, time is life spent with kids instead of useless bureaucratic work.
I have tons of similar stories, friends (surgeons, radiologists, all non-native speakers) using chatgpt to write some official application for work permits, motivation letters etc. Just because you don't have certain way of working or work situation doesn't mean its valid for all of us.