Chi-Chi is probably a better cook than Bulma herself, but Bulma got them chef connections yo.
We have to think about the fact that Chi-Chi has managed a household and raised two children almost exclusively on her own.
I'll take that over most other scenarios that Toei and Toriyama might think of, thank you very much.
As we saw in episode 83 of Dragon Ball Super, papa Vegeta is adorable and way more helping than Goku as a parent.
Living with each other's wives for at least a little bit would give each other an opportunity to talk with them and get all the dirt on each other.
Unfortunately, she sometimes takes a cavalier approach to her children's safety.