Bridal showers

It is up to whoever is hosting. Usually the host gets a guest list from you and they do the inviting but I have never heard of anyone required to be in attendance to every shower. People have showers thrown by their work, churches, book clubs etc and no one invites the brides mother unless they know her lol

If your MOH throws you a party, then both families get invited. If say your aunt on your moms side throws you one, then it will probably only be your family members, same if his aunt throws you one, it will probably be his family.

I mean, usually brides only have one shower and yes, her mother will attend (oftentimes they plan it in some capacity and/or even help pay for it). My mom was not invited to my bachelorette party, but she largely planned and paid for my bridal shower.

Showers invite (typically) most/all of the female guests invited to the wedding.

I only had one shower. If I had more than one, I would force whoever hosted to invite my mother, my husband's mother & stepmother, and my bridesmaids to all of them. I can't imagine not including them in those things.

Depends. One of my friends is super close to her mom and most of her friends are friends of her moms so she went to her bachelorette but most mom's are not because daughters usually do not want their moms seeing them get wild lol. I would make sure your MOH or bridal party take charge of the bachelorette lol. If she does the shower then she can kind of run it her way. I would ask her if she is thinking of planning and attending the bachelorette because you said showers.

We are having one shower that my mom, step mom, and aunts are hosting. They're inviting all the ladies off of our guest list no matter the relation so I'll have individuals from my mom, dad, step dad, and step mom's side of the family there!

Maybe two showers? One for friends and one for family members? If it's not a big deal that she comes then include her. But if it's going to be drinking and cards against humanity and raunchy at times, maybe you could just tell her that, and kindly say that you want just friends at that one. Call it something different! But mom, you will be at all the others. Especially if YOU plan one mom! Hint hint