The WG partner should also have a child in about the same age…
To save costs on the expensive rent.
Savings when washing together (60 ° white, 30 ° white, colored 60 °, colored 30 °, delicate fabrics).
To save costs for the expensive additional costs.
To save costs with Netflix, GEZ, cable, telecom…
To cook cheaper and buy larger portions.
To cook only every other day and to save time.
To share a car, with expensive maintenance such as insurance, tax and workshop.
So there are websites like Wg-gesucht.de
Here eg: https://www.wg-gesucht.de/artikel/wg-fuer-alleinerziehende-gemeinsam-herausforderungen-meistern
or here: https://www.wg-suche.de/magazin/ist-eine-alleinerziehenden-wg-wohntraum-oder-grosses-risiko/
or here: https://www.match-patch.de/ratgeber/familie/alleinerziehende-wohnungssuche/
It does not have to be a shared flat for single parents. There are many special purpose communities of this kind.
Experience has shown that the most important thing is that the "chemistry" between the roommates is right.
A good site to search and offer is
http://www.wg-suche.de or
http://www.ebay-kleinanzeige.de
