Quoting I♡C.:" When do you mamas quit CO-bathe/CO-sleeping? I just stopped. I miss him, but I feel like I need my independence ... [snip!] ... shower alone or to get good rest for work the next day, but it's killing me inside ending something we've done for 2 1/2yrs."
Co-bathing isn't something that I ever did every single time.. just when I feel like it or when its more convenient.. and I do that all the way up until the kid starts noticing things and asking questions. lol.
With my son, as soon as he became capable of verbalizing that he recognized the differences between our privates, I decided it was time to stop showering with him (he was probably around two and a half or something). I didn't make a big deal out of it or anything.. just answered his question, explained that boys and girls are different, then stopped taking showers with him.
Now, with my girls, I imagine I'll probably stop by age three anyway.. there's no real differences for them to notice and ask questions about or get confused about, so I guess, that's just a good time to stop doing it.. I don't know.. lol.
My mom let me shower with her until I was actually old enough to remember it (but I don't remember how old, maybe four or five.. I remember it though).
As far as co-sleeping, I didn't with my son, but I did with my daughter, and I did it until she was six months old.. Then I decided it was a good time to teach her to sleep by herself for a couple of reasons..
For one thing, she was becoming more mobile, rolling around and stuff, and I felt that it was safer at that time to move her to her own bed..
I also didn't want to wait too long because I wanted her to get used to it while she was still young enough to make it easier... I knew that it would only get harder to do if I waited.
And it was around that time that she was sleeping through the night without needing to nurse, so it seemed to be a good time for us.