I was at the airport and saw two women (mother and daughter I guess), traveling with a young boy (about 9 or 10 years old). The two women both went into the ladies toilet, and the boy went in with them. I thought it a bit strange that they would take such an old (clearly independent) boy into the women’s toilet.
Is there an upper age limit at which it is no longer appropriate to do this? What about men taking their daughter into the men’s toilet? Do the same rules apply? In this example if 2 men took a 9 to 10-year-old girl into the men’s toilet would it be any more or less appropriate?