tidy children

[hhtt21]

"Parents paid a lot of money to send their children to Greycoats, and the children there were clean and tidy, wore expensive clothes, and did well in examinations."

Would you explain how children can be clean and tidy?

Source: WHO, SIR? ME, SIR? by K.M Peyton.

Thank you.

 

[emsr2d2]

It means they weren't dirty and their clothes, hair, nails etc were neat.