What do you believe is the single most important factor driving up the cost of living in Nigeria?

Imagine checking in for a flight with your two teenage children. At the counter, you are told that your youngest teenager's suitcase is two kilograms over the limit. You get slapped with a $75 penalty for their excess luggage.

This penalty feels arbitrary and unfair. The youngest weighs about 45 kg, and their luggage weighs 25 kg, making their total payload on the flight 70 kg.

Their older sibling, on the other hand, weighs 65 kg, and has brought 23 kg of luggage to check in. Their total weight is higher—88 kg—yet they receive no penalty.

Obviously, things aren't that simple. Charging passengers based on their weight is highly controversial for many reasons. But that hasn't stopped some airlines experimenting with such policies.

Imagine checking in for your flight only to have the staff tell you to purchase an extra seat as you are a plus-sized passenger. You feel discriminated against because you are using the same service as other passengers and your weight is beyond your control.

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