One example would be state disability programs, they already need my real name and identity to work with me. Are there any downsides to sharing a simplelogin alias containing my real name vs no containing my real name? I just think it would be easier record keeping for them.
At my current university, I am firstname.lastname-4@university. My previous university, a much smaller one, I was fortunately firstname.lastname@otheruniversity, but the email client informed me there were two other people with my name there. It’s wild because I didn’t think I had a super common name.