Why would I get more clicks with lower bids?

The idea is to gather research on KWs using the KW planner. We start low on bids and then increase slowly over time. Even if KWs are not at recommended bids, they will still get traffic and you will still see conversions. This is called the low hanging fruit. Then we work our way up by using the below first-page bid strategy, getting all the rest of the profitable and converting KWs. Raising your bids will raise your QS (to a point) and from there if your ads are performing well, your QS will go even higher. When you're getting traffic, you'll stop raising bids and start optimizing your KWs that are getting traffic. We call it low hanging fruit. After that is done, you'll raise your bids on the below first page bids only (in training under part 7 optimization)