does everyone get a bid?

You aren’t guaranteed a bid but like you said it’s incredibly rare to get cut from all houses unless you have a really low GPA and bad convos

Yes there is a chance that you could be released from all houses. It is unlikely but I knew a few girls in my grade that got dropped completely. It could be because of bad conversations, a low gpa, not a lot of involvement in high school, or just a bad reputation. Just remember that recruitment doesn't define you and these girls have NO IDEA who you really are as a person based off of these short, basic convos that go on during rush week. Just put your best foot forward and if things don't work out that is totally okay! College is still just as fun even without being in a sorority, you will find your people!!!