Parents need to know that Dads will appeal especially to mothers, fathers, and perhaps their own appreciative grown or older children. Fans of the celebrities interviewed in the documentary, mostly comedians and late-night hosts, are also a likely audience. While younger kids can certainly learn from the positive role models in the documentary, the more in-depth segments featuring non-celebrity fathers tackle some mature themes, like facing hardships as new parents and caring for kids born with physical problems or who have experienced emotional or physical trauma. A man talks about considering suicide after being diagnosed with an autoimmune disorder. Various scenes show childbirth, with private parts blurred out, but including women feeling the pains of labor. Several men cry on camera out of fear or joy, gratitude, and boundless love for their kids. There's language, including from celebrities, like "s--t," "a--hole," "hell," "heck," "jeez," "god," "suck," "stupid," and naturally, where babies are involved, "poop," "pee," and "butt."