picnic blanket at concert?

i’m seeing a lot of ppl talk about bringing a blanket to their concert while waiting for chappell (going to LA night 2 10/11) and im wondering, what did you do with it once chappell came on?

i’m hearing ppl say there’s no like in/out or anything as for putting it in car/away, so idrk if it would be like worth it to bring blanket or if we should just commit to sitting on the grass?