The Sims 4 Suggest Adopting a Child Interaction
Tested for patch 1.84 (2/15/2022)
Attention After I submitted this mod a few days ago I found a bug and fixed it but was not able to replace or cancel the upload. If you downloaded the mod just after it went public please download it again, I just updated the file. The bug was that the interaction did not work, if it took place outside of the target Sim’s home lot.
Since the "Discuss Expanding the Family" interaction is just designed around pregnancy and does not work for gay couples or single Sims, I added a new interaction which lets your Sim suggest to another Sim that they might adopt a child.
Mod Functionality
This mod adds a new interaction "Suggest Adopting a Child" that can be found with the friendly interactions.
If the interaction is successful a random toddler or child will be added to the target household 
The toddler or child will be added to the family tree and the target Sim and their significant other (if there is one) will be set as parents.
Every Sim can suggest an adoption but only YA or Adult Sims can be the targets of the interaction. Your Sim has to be friends with the target Sim.
The suggestion will not always be successful and the Sims will get moodlets depending on the result. Sims with the trait "Family Oriented" will be affected more, both positively and negatively, but they will also be more successful.
If the target household is already full the suggestion will always fail.
And the interaction is not visible for members of the current household, since it is not meant as a cheat
Packs required
No packs required.
Translations
I added a German translation. All other languages will use the English texts (so far). Since I added a bunch of strings I’m not really comfortable with using automatic translations, but if anyone would like to provide translations for their languages I’d be happy to add it (and give credit of course).
Installation
Unzip and drag both the package file and the script file into your Sims 4 Mods directory (not more than one folder deep).
Compatibility
This mod adds a completely new interaction and does not override any game resources, so it’s quite unlikely to conflict with other mods.
Credits
Made with Sims 4 Studio
Thanks a lot to andrew for the tutorial on Python modding.
Thanks a lot to scumbumbo (RIP) and the other people in this thread for letting me know how to add interactions.
Terms of use
My mods are published under the Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) license.
If you share my mod please link back to this upload.
Are mods safe? … It is perfectly safe to download mods.
How do you use Sims 4 mods ? Extract the two files within the . zip file and place both of them into your Sims 4 mods folder. The mods folder is found in Documents > Electronic Arts > The Sims 4 > Mod
Will there be a Sims 5? Yes, there will be!
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Credit : flauschtrud