Am I the Asshole?

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The original was posted on /r/AmItheAsshole by /u/tsweddingaita on 2023-06-24 17:39:37+00:00.

My sister and her now husband had their wedding in the Lake District in the UK. It's so beautiful here, they had a lovely outdoor wedding, it was very intimate and only included family and friends because they wanted to go all out and make a mini-holiday of it. We all arrived Wednesday morning and are due to leave on Sunday so people can go to work.

If you know the Lake District, there are lots of beautiful walks and scenic views. My family are quite seasoned runners and hikers so my parents and I did a 12K trail run/hike of Loughrigg on Thursday. It wasn't my idea, more so my parents, but I run longer distances on the road so thought how hard could it be? I also don't see my parents often and thought it would be nice to do something with them while they aren't pre-occupied with work. It was rocky in some parts and you have to be careful on your feet. I was not careful enough and had a bad fall and hurt my ankle.

The only shoes I brought with me were my road trainers, trail trainers (I hike in these anyway), my wedding heels (3 inch) and Crocs since I wear them to travel in. Because I was feeling some pain on the day of the wedding (Friday), I brought them with me incase I needed them and I did end up needing them so I wore them during the wedding. For official photos, I wore the heels but then would change into my crocs when nothing too important was going on.

My sister saw me in my crocs while I was at down and asked me why I wasn't in my heels. I explained that I had a bad fall when I was running and this was more comfortable and I didn't want to aggravate my ankle. She wasn't very happy and said I shouldn't have gone if it was too risky for me. I asked her what the point of having the wedding in the Lakes was if she didn't want any of us to take advantage of the trails. She said that wasn't the point and it was rude to show up in Crocs. I said that I really should have gone to the hospital but I didn't want to detract from her wedding so she should be grateful I'm here even in my Crocs. My sister and I aren't particularly close.

My sister has been messaging families about my Crocs and now I'm getting grief for wearing them at a formal event and my aunts have been making snide remarks about how they knew I wasn't going to follow the dress code. AITA?