Is it a good idea to trim grass?

Yep, the faster it grows, the more it needs cutting. Usually aprox every 1-2 weeks.

We used to own Lee landscaping many years ago. The key to a lush lawn is not cutting it too short and cutting it 1 to 2 times a week, while keeping it well fertilized. Also, finding the right amount of water for your area is crucial. Too much water can cause fungus to grow and with too little water it will burn up. Also, bagging your clippings will make for a beautiful and inviting landscape. ☀️

Lindy Ann, I wonder if there is more to your question. All of the other advice is good and should help if you have a normal lawn. Do you have a special problem or concern? Are you considering not trimming the grass for some reason? Be sure to meet residential codes for your area, but being innovative may start a trend.