[sunnyam]

My interpretation was that adolescent refers to the maturity with respect to life experiences.

The set of life experiences that a bachelor can experience is smaller than the set of life experiences that a married man with children can experience.

I don't think this is a particularly offensive thing to say, but instead, given that she's from a group whose voice has been historically subdued, I think it's a witty reparatee to refer to that philosophy as "adolescent". I don't think she's calling bachelors adolescent, but for the word of a bachelor with most likely more limited life experience, I do think it's fair to call out that it perhaps isn't the most rounded point of view.