I’ve done this and found it fairly annoying to manage, and of limited value because if you’re editing a shoot you will want to have some visual consistency which means if most are RAW that you have given a style to in your edits, the same settings will look totally whack on any JPEGs anyway.
For one offs? Maybe I guess.
Some people also swear by editing at the point of shoot (Ken Rockwell for instance, but his logic sounds absurd today) and thus use JPEG.
I just shoot jpeg + raw because my body has dual cards so I'll always have a backup in raw format, if the jpeg card fails. I've found that I'm editing raw so much less because I love the look I'm getting straight out of camera. I shoot a lot of instant film so shooting this way digitally works for my workflow, but I understand why it might be complicated if you like a jpeg but then need to modify a raw to conform to it.
For one offs? Maybe I guess.
Some people also swear by editing at the point of shoot (Ken Rockwell for instance, but his logic sounds absurd today) and thus use JPEG.