You guys are drfiting off topic a little.
The OP was about CFI's perceptions to their own student's career paths or choices.
I agree with floridacfii but I also agree with some other points here too.
I instucted at both part 61 and 141 schools and would often try and have these candid conversations with my students.
Some would be receptive to it, others wouldn't so I didn't push the point too much.
The main thing I would make clear is that they need to understand what they are getting into and what the ultimate price to pay really is.
I would tell them that they need to make aviation work for them on their terms as much as is possible, not be a slave to it, it owes them a living after all their hard work.
Some would get it, others didn't want to hear it and did what they wanted anyway.
But all we can do is offer a different point of view and it's up to them to use it or not.
Good luck to all in these tough times.