The company that under-promises won’t win the bid, though. Unfortunately the norm now is to overpromise, and then squeeze as many extra fees and concessions out of the project as possible.
There’s also a culture of contractors vs engineers where limits willingness to work together to find solutions. “not my fault”.
For healthy working relationships and solid infrastructure you under-promise and over-deliver.
For maximal profit and sustainable business models you over-promise and under-deliver.
The company that under-promises won’t win the bid, though. Unfortunately the norm now is to overpromise, and then squeeze as many extra fees and concessions out of the project as possible.
There’s also a culture of contractors vs engineers where limits willingness to work together to find solutions. “not my fault”.