AITA for wanting to go on a hike for my birthday even though my brother's girlfriend doesn't want to?
I (26M) want to celebrate my birthday with my immediate family (my parents, siblings, and their partners). My idea was to do a 6-mile (10 km) beginner-friendly hike and then have dinner together afterward.
The problem is my brother's girlfriend.
For context, she used to be morbidly obese and, for many years, wasn't able to be very physically active. Because of that, for the past five years I've always chosen birthday activities that didn't involve much walking or exercise so everyone could participate. I never complained about it because I understood her situation.
About a year and a half ago, she underwent weight-loss surgery and has since lost a significant amount of weight. She is now at a healthy weight.
However, she still doesn't like walking or hiking. Over the past several months, she has said multiple times that she finds walking boring and doesn't really see the point of it. She says that her body is still adjusting after the surgery, and I don't doubt that this may be true to some extent. At the same time, based on what she's said herself, my personal impression is that the bigger issue is simply that she doesn't enjoy walking or other activities that involve a lot of movement, rather than being physically unable to do them.
The hike I planned is specifically meant for beginners. It's about 6 miles long, mostly flat, and has plenty of places to sit, rest, get food, or even stop early if needed.
When I suggested it, my brother immediately told me that neither he nor his girlfriend would come if I chose that activity.
I said I completely understood and offered a compromise: those who wanted to go on the hike could do so, while anyone who didn't want to could skip it, relax elsewhere, and then everyone could meet afterward for dinner at a restaurant.
My brother got angry and called me selfish and egotistical. He said I was deliberately excluding his girlfriend and that I should be more considerate.
Now my mother has gotten involved and is also pressuring me to change my birthday plans so that my brother's girlfriend can participate.
I even offered to shorten the hike, but since then I've basically been ghosted.
I genuinely don't want to exclude anyone. At the same time, I feel like I've spent years choosing activities that accommodated one person, and for my own birthday I'd like to do something I actually enjoy.
So, AITA?