A lighter "File not Found" routine

[Moneo]

Simply "moving on" does not make any sense. What if the only input file to the program does not exist? Got no input, so "move on" to what?

Unlike you say, sometimes it is actually the best thing to do, to go on.
There are lots of examples to think of.

Neo,

Please give some of these examples.

I'm taking about an input data file that the program needs to perform its processing. Not just a little input file that maybe contains the heading that goes on some output report, which obviously can still be generated without the heading.

I can't understand what you have in mind.
*****