Child benefit isn't available if one partner earns over £60,000. Dad appears to own the bakery so might be making decent money (I seem to remember in previous one they said he goes to work at 3am, comes back to help with school run then back to work).
They seem a chilled out couple, who don't seem to lose their rag with the kids despite the noise etc. As a SAHM the kids will have mom there when they get home from school until bed, so although they'll have to share her they probably get more time with her than where mom/dad come in late and kids are soon to bed. Attention doesn't appear to be an issue.
I'd rather have loving parents like that in society than those with one or two who are mistreated and unloved.