to think cashier at waitrose shouldnt comment on me buying jars of babyfood for 15 month old son

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cashier commented hes a big boy for jars. Felt like i had to justify my purchase by saying it was to have in bag just in case i was caught short. Jar was for over 12 months is it that bad him getting jar once in a while and think its none of the cashiers business.

Noooo - if she'd been a MNetter she would have been waaaay more disparaging than that

I have never got this mad aversion to jars after a certain age. I didn't use them regularly but if I was going on a long journey and there might not be suitable snacks on the way I always took a couple, fruit gets bashed about, sandwiches get sweaty nothing wrong with a jar of ready made food every now and then.