Disclaimer: this doesn't really answer any of the specific questions other than the "anything else" one - which is why it was originally a comment. However, as @fygsin asked me to put it into an answer, here go my 2 ct:
How far do kids walk?
When I was in kindergarden (so age 3 - 6), sometimes dad would collect me to walk home ≈ 2-2.5 km after a full ...
Commonly cited reasons for washing new clothes, especially those worn next to the skin, are
to remove some of the chemicals added (for whatever reason) to the material by the manufacturer -- chemicals that your skin may have an adverse reaction to
to remove some of the pathogens that have been deposited on the garment by sick folk trying on the item in the ...
Following @csk advice, I washed the mittens in luke-warm water with a little bit of soap and then dried on a rack.
I was worried that washing might remove the waterproofing but that was silly: the mittens were soaked through on the first day of actual use and on all the days after that. So even if i had not washed them prior to use, they would have become ...
I see a lot of ideas already.
Whenever a kid gets bored (or better: before that time), make sure it gets distracted.
For kids a long walk without much 'change' is maybe boring.
So you can try:
Singing songs together (don't make other hikers annoyed)
Find games to do … this can be simple or more difficult, depending on the age, e.g.
Count animals (of a ...