Oh, grounding for older children is definitely an effective punishment. I use that one sparingly though. My parents used that at the drop of a hat (bad day at work and my shoes were in the wrong spot or the dishes weren’t washed fast enough) and I missed many functions that were important to me, it also affected my social life. Since my friend knew that the odds of me being able to attend a sleep over, party or even a basketball game were slim, they stopped inviting me.