I believe it is an FAA regulation for 2 items per person and that’s why they announce for you to consolidate your small items. I’ve had them say that blankets and neck pillows must be stowed but that’s dumb because that makes your carry ons fat. You can wear your coat on but not carry it on. Also dumb.
Honestly, I rarely get asked to consolidate my cross body bag if I have a rollaway and a computer case.