@Bunnymumy, I'm sorry but most of your post is coming across as very homophobic...
Tbh...I've never understood why ppl, if they have the choice (bi) of whom to fancy, would actively pursue the same sex, knowing the extra problems and prejudices that would come with same sex relationships. Seems like extra added hard work to me.
If you said that about someone who was considering dating someone of a different race, you'd be torn to bits and rightly so!
You make it sound like it's ok...you're not fully gay, so you can choose the straight life and have an easy, "normal" life. Awful.
And "nobody needs to know you're bi"
Honestly, I think you need to give yourself a shake and listen to what you're saying.
And just for the record, just because you're bi, it doesn't mean you "choose" who you fancy. What a ridiculous thing to say. I can't believe people still say this!
Anyway, back to the OPs original question:
I had only ever been with men and was in a long term relationship with one for almost 8 years. We have a DD together and yes, when I first met my now DW, I was concerned that she would be bullied, but in the 8 years we've been together, that thankfully hasn't happened. She occasionally gets asked what it's like to have 2 step mums (her dad has a gf) but nothing derogatory. If anything, some of her friends think it's cool that her mum has a wife 🤷♀️
I don't see any reason why you shouldn't pursue this. You're single, why not? If it's something you've always felt you wanted to explore, that feeling is not going to go away. Don't be scared. It's potentially an exciting time for you.
Please do not do what has been suggested on here and internalise bi phobia.
We have fought for generations for equality, so now is not that time to suppress who you really are. Be proud.