A couple of years ago, our son went on a trek up a mountain in Colorado with a group from church. They had two experienced guides with them which eased my mind about our youngest child (age 17 at the time) going up to the top of a huge mountain. I don’t know if any of them used Trekking Poles or not, but I know they wore cleated shoes to grip the mountain as they went up steep slopes.
The hikers spent the night in tents and ate campers food (the exact opposite of deli food). Some parts of the mountain trek were extremely challenging (and sounded almost dangerous to me). I must say that after hearing from some of the other trekkers, we were very proud of our son and how he carried the gear of weaker hikers who were about to collapse, even though that made his load twice as heavy. That is a memory of his trek that I will always treasure!