Comment by Ekaros

Either you lived with parents or maybe other relatives. Or in case of agricultural labour the living space and food was part of compensation and thus someone else cooked. Same goes for lot of seasonal work cooking was shared or someone did it for larger group. Then you had boarding houses that included well board meaning food and possibly laundry. Or you simply ate in communal ways with food from vendors.

Actually single person living alone in place solely being their use is rather new development.