I work in a well known superstore (think flat packs type...)
The toddler wasn't running around..was seated in trolley, totally bare apart from one small towel over a shoulder. The first thing I saw was the little bare bum on seat when helped the mother with something.
Didn't bother me..just surprised but assumed the little one had had an accident.
Told co-worker later and they berated me for not saying anything. Said mother could have gone next door first (supermarket) and bought the child some cheap clothes.
Yes I'd considered some weirdo might have clocked the child but I didn't want to draw attention nor embarrass the mum. It wasn't harming anyone and the store was fairly quiet.
Was I wrong? Obviously if child had been running around I'd have had to say something as a safeguarding issue..but not when seated quietly in trolley.
I'm prepared to hear that I'm wrong though!
Also some customers travel hours to get to this store so it might not have been the case she could have just popped home.