He's not being condescending. The quote is cut off before he tries to explain that for HIM seeing other places is a daydream that he accepts is unlikely to happen.
Egwene is absolutely behaving in bad faith, here. "You have not given any sign lately that you'd care one way or another." She's flaunting her career options to get Rand to make a dramatic gesture or indication of her supreme importance to him. What she does not like is Rand's attachment to the Two Rivers above a single member of the community, and his unwillingness to leave behind his father and friends to follow her on her highly unrealistic plan to pursue a career that gratifies her ambitions.
The problem in their relationship is that Rand understands her too well for her comfort or to be happy in a real relationship with her. The argument is immediately preceded by her announcement of her studying to become a Wisdom, which Rand finds highly amusing. This is because the job is for life, and the current one is 24, so there is not likely to be an opening for fifty years or more, as he points out. And Rand knows Egwene would never be satisfied as the Wisdom's assistant, that for her it is all about the rank & status, not the service.
My theory is that this attitude underlies her pursuit of a relationship with Rand - before she knows that she might be qualified to be a Wisdom, the highest rank or status to which she might aspire is the female head of the household. With the domestic pattern in the Two Rivers being extended families in one home, that means in most cases, Egwene would move in with her husband's family, with several senior female members of the household, and, as with being Nynaeve's understudy, decades before she could hope to rise to the top. Or he would move in with her, and help her parents operate the inn, in which case, she is still the baby sister, and under her mother's authority. But by marrying Rand, and moving into a household that is A. at some physical remove from the village authority figures, and B. without other women, she would instantly attain that desired status. Suddenly, she would be Mistress al'Thor and the literal mistress of their home. All the decisions which devolve into the women's sphere of influence or authority would be hers alone. The al'Thor kitchen would be her kitchen, people who didn't wipe their boots at the door would be tramping mud on her floors and she could rebuke even the mayor for doing so. And people in the village would treat her as the important one in the family, rather than one of Tam's children, because the women of the community are heavily invested in the idea that within their sphere of activities, a woman's word is law over a man's.
Consistently through the whole series, Egwene is all about the rank, status and authority of her position, with no particular attachment to the work or purpose of said position, except as it relates to her retention of the aforementioned rank, status & authority, or her chances of climbing the ladder. She is particularly ungracious about anyone claiming a higher status or superior position than she, or exercising authority over her, however rightfully so.
