I am relieved I am not the only one who doesn't want to eat lunch (or anything really) straight out of the fridge.
At my old workplace (one of many odd things about it) all my colleagues insisted on keeping their lunch in the fridge until just before they were going to eat it as it might go off if exposed to the ambient air in the office. Goodness knows what they thought of me with my chicken and mayo salad sandwich just sitting on my desk all morning. Ice-cold salad tho - yuck.
As far as the rest goes, well my DD (vvv picky eater - long story) loves a shop-bought sandwich. I end up getting her dull ones bc she is vegetarian and the vegetarian choice is often sadly dull.
I don't mind a shop sandwich for variety tbh - prawn mayo or smoked salmon and cream cheese is tricky to do on a small scale on the spur of the moment at home.
As for the money people are spending, well, isn;t that up to them? If they then complain of always being broke, that is the time to chime in with the fact that a home-made packed lunch will cost less than a quid most likely. But until that point I can't get excited about it.
I am often amazed at what people spend cash on, but I keep it to myself. They probably think the same about me. I like expensive skincare and make up (advent calendar addict) and I often buy takeaway coffee for me and DD to enjoy together. Yes, if I saved that money I would have maybe £1000 in a year - which I could, well, spend on what? A two-day city break with the family? I would in all honesty rather have the lipsticks and coffees with DD.
I know people who spend £35 a month on their phone or £400 a month on their fancy car. That's not for me, but if it makes them happy and their children are not going hungry then happy days.