I have to be honest, as someone with bipolar myself, I would be hesitant. My former best friend has bipolar and could be really abusive when manic (I'd go to bed to "you're the most wonderful supportive friend I've ever had I love you" texts then wake up to "you evil c-" texts, and wasn't allowed to be upset or complain because she was the victim and ill), and she wrote terrible letters to my boss during her last manic episode which nearly ended my entire career. It wasn't her normal personality at all, it was all the illness, but I had to end the friendship because otherwise the abuse would have killed me. I know the illness wasn't her fault but she chose to not take medication, knowing how frequently she had manic episodes severe enough to be Sectioned without them.
I have two friends with schizophrenia and one with psychosis, and they're all lovely, but only one is receiving proper treatment (the other two refuse to engage with MH services at all). The other two do put a huge burden on me. I know I'm not supposed to say that but it's true. I've had to hare across London at midnight to rescue friends and then had no way to get home (in a situational where I genuinely thought they'd be dead within hours if I didn't, and had previously had them crying on the floor begging and threatening suicide if I told anyone else), had them turning up at my house in the middle of the night not making sense asking to use my laptop as their own laptop was being monitored by "them." It's just living in fear 24/7.
And I know my own mental illness has been a huge burden to my other best friend, he once had a breakdown from stress and had to be hospitalised after I vanished and was declared a missing person and suicide risk and he believed I was dead.
I wouldn't have any issue working with someone with bipolar, or letting kids play with someone whose mother had bipolar, because I would assume someone who can hold down a job and raise kids is in treatment. But at this point I would be leery of a close friendship because I just can't cope with going through all that again.
Having said that, there's a huge difference between people like my friends, and someone who is in treatment and committed to managing their illness.