If you are introducing a person to backpacking it is a good idea to read up on altitude sickness (acute mountain sickness, AMS) so you can recognize the symptoms and respond appropriately.TCHN DAD wrote: 5. Was altitude and issue?
I took my daughter and son to Little Lake Valley for their first trip. They were 7 1/2 and 4 yrs old, respectively. My daughter was not affected by the altitude while my son was. I later learned that I could take him up from Los Angeles (sea level) to about 7,500 ft the first day, go up about another 1,000 to 1.500 ft the next day, and by the third day he was OK for high Sierra altitudes.
Years later my backpacking buddy took his family to LLV and his son, about 12 yrs old, also got altitude sickness. So be aware and be ready to "cut and run" back to lower elevations.
One nice thing about LLV is that you can get back to the car in short order and quickly drive down the mountain.