5-1/2 He Old Niece Is Not Potty Trained And When

5-1/2 he old niece is not potty trained and when visiting friends outside of their own home, the 5-1/2 yr old will be on furniture & expensive cushions; doesn't tell anyone until the next day when you find out that little visitor peed all over sofa and expensive cushions... Child is very spoiled as an only child, gets everything she wants no matter what.