Mount Kilimanjaro is not a really difficult mountain to climb as it is walkable. It does not require any technical skills to climb and has a rather high summit success rate on average.
If you are a regular weekend walker with lots of determination we can get you to the top. That does not mean that it is not an incredibly tough challenge. The difficulties arise from a number of different factors. First, you are walking every day for at least 6 days for an average of 7-8 hours a day. There is then one very long day of up to 18 hours. You need to be really determined to handle this.
Second, you are climbing to nearly 20,000 feet at which altitude, air pressure and oxygen availability is about 60% of sea level. This means with every breath you are only getting just over half as much oxygen. To compensate for this you have to do everything slowly with a goal to avoid altitude sickness. Finally, you will be camping for up to 8 nights, sleeping on the floor and washing and cleaning in tough conditions. This is nothing that a positive attitude can’t overcome, though.