A similar feature exists on several other social media platforms and I think it's great.
This is really helpful when your social media following grows beyond friends and family but isn't large enough to justify creating a completely separate private account. Whenever I post photos of my kids or other things that are only interesting to close friends and family, I can flip the switch to only share with a small group a pre-selected people. The other followers I've picked up along the way don't have to see that content and I can limit distribution. It's win-win.
This is really helpful when your social media following grows beyond friends and family but isn't large enough to justify creating a completely separate private account. Whenever I post photos of my kids or other things that are only interesting to close friends and family, I can flip the switch to only share with a small group a pre-selected people. The other followers I've picked up along the way don't have to see that content and I can limit distribution. It's win-win.