The link below is to a brief article about TJ Osborne of the #BrothersOsborne duo about preferring to write songs with gender neutral lyrics. It's not just because TJ's gay and his brother John is straight but so anyone can sing them too.

#ItTakesTwo to make a duo like TJ and John Osborne. As couples, TJ has boyfriend Abi and his brother John has Lucie but for #JukeBoyFridayNight it's nice to celebrate duos.
https://people.com/country/tj-osborne-says-he-keeps-songs-gender-neutral-because-girl-lyrics-seem-really-strange/