You are right. For years when I was nursing and especially when working in Special Care with babies, I HAD to keep my nails really short...for obvious reasons.
Now, well I can grow them as long as I want, but do keep them trimmed...old habits die hard and all that
Our local college does run courses on nail beauty. That said I do hope to do reflexology next year, so it is likely to be more my toe nails I'll be concentrating on