I sometimes have medium length nails (3-5 mm past the fingertip), though I tend to just grow my own out, and I do it entirely for myself. I have a bunch of different kinds of nail polish and stencils for making cool patterns and it satisfies my inner elementary school librarian urge to dress up for even very minor holidays.
People have come up to me and told me that my nails are too long for them to find attractive, which is a bizarre non sequitur imo. I don’t know why the assumption is that any self-decoration is intended as a sexual signal: my ideal nail-based interaction is that a little kid asks about them and I get to tell them about Arbor Day or national soup day or something.
Sometimes they make life more difficult, and then I either find workarounds (opening pull tabs with a spoon, for example) or cut them, depending on how much time I have and how much I like my current nails.
I get that they’re not for everyone, but I like them, so I wear them. It’s okay if others don’t like them, they don’t have to wear them.