Mutt, thanks for that answer.
timzsta
There rarely is a definitive right or wrong answer. Your reasoning in your answer is sound (in my view).
You go on to say
1. Is it safe?
2. Is it legal?
3. Is it convenient to the passengers?
4. Is it going to damage the environment?
5. Is it going to look good in the papers?
Again, very sound questions but isn't it a sad fact of life that number 5 has to be considered, given its influence is out of all proportion to its usefulness in making a balanced judgement?