Haruno Sakura's parents really worried about their daughter sometimes.
When Sakura, at four years old, announced that she was going to become a ninja, they had just smiled and enrolled her at the academy for a year. They figured it was just a phase.
When Sakura was assigned to Team 7 as the only girl, they worried about her safety. Never mind the small pointy things that she had to train with or the missions that she would have to face. A young, smart girl alone with two soon-to-be teenage boys and a male chaperone? What could they have been thinking? Sakura just complained about that Uzumaki kid's pranks and squealed over the Uchiha orphan. They filed a complaint to the Hokage when they finally heard about the sensei's porn.
When Sakura came home from her first real mission crying about how useless she was and how injured her team mates had gotten because she couldn't help, they considered taking her out of the ninja program.
When Sakura returned from that exam thing covered in dirt and blood, and with her long hair hacked off, her mother started crying. Her father would have marched all the way to the Hokage tower to complain about mistreatment of minors if he hadn't seen the smile on her face.
When Sakura brought home her team for dinner to show them that she could be a good ninja and a girl, they had raised their eyebrows at their daughter's brusque behavior. Then, they nervously had dinner with a pervert and a demon and the Uchiha kid, who was actually kind of creepy.
When Sakura first brought home her boyfriend, they almost had enough of this madness. Why couldn't she find herself a nice, normal boy instead of that big eyebrowed freak in a unitard?
When Sakura announced that she was renting an apartment with her team, her mother fainted and her father was speechless. She couldn't go off living with other people! She was only sixteen! 'But my boys have all been living on their own since they were children,' she rationalized, 'and who knows how they did because Naruto's still afraid of thunderstorms and Sasuke has chronic nightmares and, really, Kakashi's just hopeless when it comes to taking care of himself.'
When Sakura got married to her green unitarded, big eyebrowed boyfriend, they looked around at the array of ninjas present, from legends to freaks, and decided that their daughter lived in a completely different world and they really didn't have to worry. She'd lasted this long with these weirdoes.