It depends on the diet, I grow up with a diet that is high on oil, chilli, and veggie, I had no problem pooping everyday.
Then I went to college, the only veggies I can find are overcooked broccoli or cold iceberg lettuce. I can easily go a week without pooping, since my digestive system is just not used to these kind of diet.
Obviously it is extremely uncomfortable to go weeks without pooping. I would prefer to poop like normal, but I cannot find the diet I am used to in college.