Not everyone looks too far into the future when looking for a shidduch.
If a girl wants to marry someone who’s going to learn full time for the rest of his life, that’s realistic, but she has to realize that that means that she’s going to be working full time, or money will be very tight, or he’ll be in klei kodesh.
If she wants to marry someone who’s going to learn for 10-15 yrs, it may be that he’ll only qualify for a low-paying job, which is also fine, as long as she understands. And after that he certainly won’t be learning full time.
Anything is possible. But she’s gotta have realistic expectations as to how things will work out in the future. Full time learner? Check. Nice house? Nice clothes? Lots of jewelry? Vacations? She needs to decide for herself whether those need to be checked.