So it’s not “worthwhile” for a bachur to learn with someone who is not at the same level of learning? Every time he learns it has to be with someone who knows enough for him to “respect”?
Those who know less, whether because they are women, baalei teshuvah, etc, should not be considered unfit to learn with at all. I am not suggesting that bachurim make their mothers their regular chavrusas, but again, to learn with them once in a while if they want to should not be so remarkable.