On the other hand, I've played with a lot of sims who dislike children, and they have no issues becoming friends with their kids and caring for them. Though this was in an immortal dynasty attempt, I had a household of five adults and two toddlers, and it was child-disliking Sofia who ended up autonomously caring for them the most. Her husband was only friends with their daughter while she was best friends with her.
Be careful when you have sims playing for tips or performing for tips as a part of Showtime profession. In my immortal dynasty, Willow ended up getting tons of best friends merely by performing for tips. Cricket came dangerously close to failing the dynasty by befriending Cadmium's unique best friend, Chauncey Grimm with her piano-playing (thankfully, I was able to let their friendship naturally decay, but he still calls her for dates. NO.). I ended up using an elderly fairy for Cricket's best friend requirement because he died a few days after everything was done and wouldn't jeopardize the dynasty if I had another performing sim.