I did not say not to list ten. I said you have ten spots - and I was answering the question of if the OP should list the three jobs individually or combined - so they could then create two more slots for activities.
My guidance was to list them separately - they are separate job. Another person said combine.
The fact that you used ten (as did my daughter but not my son) does not mean that all ten were read or believed, etc.
Colleges all say they want quality, not quantity.
Some people want to list stuff from 8th grade of things like NHS where they literally do nothing and in reading their descriptions, you can tell.
There’s only so much time in the day - and between studying, work, and activities - many AOs probably discount the bottom of the list.
It’s up to the OP - I was simply answering their questions which is if I had three jobs and those three were “important” - i.e. in my top ten, I would list them separately. That’s me, not everyone.