Re: And little did they realise that they probably didn't save money on outsourcing.
Tui have not only outsourced the programming, they've outsourced everything. They have no idea how things are designed and don't have the expertise to test the result.
I wouldn't leave it to intuition, because if you leave it to intuition you get stuff like we've just seen.
Also, there are tables of average weight by gender and age. With the title and DOB (which you have to give when filling in passport details) you can work this stuff out.