The confusing part starts after you get the ticket. What you need on the day, and how to behave.
Entry times, prohibited items and identity checks differ from show to show, and even between venues for the same artist. Having to check or discard something at the door almost always traces back to not reading the notice. Notices often appear after tickets go on sale, so check again a few days before.
Many shows verify identity, so ID is nearly always required. Phone batteries drain fast at venues, which makes a power bank effectively essential.
Professional cameras with interchangeable lenses are usually refused. Selfie sticks and tripods are often banned because they block views. Food and drink depend on venue policy, and some venues require large bags to be checked in. When unsure, leaving it at home is simpler.
The entry queue and the merchandise queue are different things. If you plan to buy merchandise, arrive much earlier, as popular items can sell out on the day. With assigned seating and no merchandise plans, there is no need to rush. What you intend to do decides your arrival time.
Blocking the view in front of you affects everyone behind. Even where filming is allowed, raised arms block the rows behind. Keeping walkways clear during the show and taking your rubbish with you afterwards is the basic courtesy.
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