The problem with phones is that the cameras are so good now that the images are too large to use online sometimes.
So even if you could attach them from your phone they will still be too large.
The answers both require effort, at least for me they do.
1. Find photo editing software or something on your computer that will allow you to resize the photos. I have a Mac and use photoshop which takes forever. So I am guessing there is a simpler program out there. I’m guess Windows has some kind of photo editor. After you shrink the photos down far enough you can attach them.
2. The second way is to join a photo sharing site. Upload the photos and then link them.
I have looked for an option on my iPhone to reduce the size AFTER I take a photo but I haven’t found an easy answer.
That’s where I am with it. Hopefully someone will have an easier solution. And glad you got to go to a home game. Would love to do that myself.