What is the duty of a maternal aunt toward her sister's children who do not pray?

One of the sisters asks and says: If I have a brother's children or a sister's children, but I do not see that their parents are concerned with their proper Islamic upbringing, as they do not order them to pray, even though many of them have reached the age of ten, is it obligatory for me to take on this role, or how should I act, knowing that they may become angry if I hit them when hitting becomes necessary?
Answer: You must advise them, their fathers and mothers, so that they fulfill the obligation. You do not hit them, but advise them. Advise their fathers and mothers so that they fulfill the obligation. It is upon you to give advice, enjoin good and forbid evil, and to hit others; because the Messenger of Allah (peace and blessings be upon him) said: , so the ones commanded are the fathers and mothers. And you, if Allah wills, advise, point out, encourage, and warn.
The presenter: May Allah reward you with good.