Sometimes I do my food shop on my own while DH stays at home with DD. That’s on days when I can be bothered to go after a full day at work or once DH gets home when I’ve had DD all day.
Sometimes DH goes after work, if we need something that day, although he is usually on a strict time limit for picking up DD from nursery.
Sometimes I take DD on my own, because it’s my day off work, we don’t have anything planned, and I need to do a shop.
Sometimes, at the weekend, all three of us go, because it fits in with our plans for the day. We are out and about and as our nearest supermarket is 20 minutes away we kill two birds with one stone and go while we are nearby. I could leave DD in the car with DH (or vice versa) but leaving her cooped up in a car seat while I do a big shop seems unfair. She enjoys shopping. She’s gone since she was tiny. She stays in the trolley (she’s 2), I get her to look for certain items to keep her occupied. She doesn’t whine for things as she knows she can’t have everything, having been taken shopping plenty and having been taught how to behave. Yes, sometimes it may be boring for her, but so is cleaning her teeth, getting dressed, me having to cook dinner instead of building a den for her. I don’t believe children should always be sheltered from things that might not be fun for them. Also, DH likes to have a say in what we buy. And it’s far easier having two people to unload the trolley and pack the bags for a huge shop, believe me you’ll wait far longer behind me at the checkout when I do my big shop alone than when all 3 of us are there and DH is packing while I’m still unloading.
I don’t shop online - I prefer to select my own fruit and veg, have had bad experiences with dates and unsuitable substitutions, plus my street is an absolute nightmare for delivery drivers with nowhere to pull in.
In short OP, YABU. We do what suits us as a family (and it’s not because we are ‘poor’ and have nothing better to do
). Yes children shouldn’t be racing round (scooters in supermarkets are ridiculous) but if a family wants to go together then thats up to them. I genuinely do not care whether you understand why we do things the way we do. You have no idea of the circumstances of the rest of another families day / week. Get on with your own shopping in your way and let us do ours in ours.