
This mod requires the Core Library
Maxis added a parental visit situation, but I don't like it because it works at random. You can ask for help straight from different kids' items and from infants, children, and toddlers with this mod's added interactions.
Grandparents and aunts/uncles have a specific interaction, but there is another one to call other relatives, such as the parents who do not reside on the same lot. Sims need to have a good relationship (+25) with the relative for them to show up on the picker.
Once "hired", the relative will help with children care for 6 hours.
More info and screenshots on the Patreon Post