Flower Girl - reception only?

I don't see any reason why not. She can still have photos with you - if you want her to have a bigger 'role', then maybe she could precede you into the reception. Although if she's very young, it might be better just to give her a cute outfit and let her do whatever she feels like on the day. Last wedding I went to that had a tiny flower girl, she went into full meltdown mode and lay down on the bride's train as the bride was trying to walk up the aisle

I don’t think that’s in bad taste at all! Since she’s only six, she’ll probably just be excited to dress up and feel included in your special day. You could make her feel like part of the celebration with a little entrance or some photos at the reception. I’ve seen different ideas discussed on https://ai-trans-chat.com/ and honestly, weddings don’t need to follow every tradition. What matters is that everyone feels welcome.