How wall-outlet charging affects the visit
A wall outlet can help when one is accessible and you have the charging equipment you need. The practical limitation is location. You may need to remain near the outlet or place the phone away from your table or activity. You might also interrupt what you were doing while the battery recovers.
That tradeoff matters in restaurants, bars and hotels. It also matters at events, campuses and other gathering places. People often use phones for communication, coordination and information throughout a visit. Remaining in one charging spot may be inconvenient when your group moves, your order arrives or the activity continues elsewhere.
