Automated bidding is ideal for advertisers who:
- Want to save time managing bids based on hundreds of signals
- Want to set their own bids for individual ad groups
- Want to set their own bids for individual keywords
- Don’t want to spend a lot of time managing keywords
Explanation:
Automatic bidding could save you a lot of time managing your bids. Especially if you are less experienced advertiser
https://www.youtube.com/watch?v=PZj4bR1fpUU