I don't have that information off the top of my head. You'll need to comb through the fictional narrative to determine Joel Goss's age. Sometimes it's stated outright, and other times you might have to infer it based on other details.
I don't know for sure, but since it's called 'wayne wayne story', I assume Wayne is at least one of the main characters. There could be others depending on what the story is about. Maybe a friend or a family member of Wayne is also a main character.
I'm not sure specifically what the 'wayne wayne story' is about as it could be something very unique or personal. It might be a story created by someone named Wayne about his own experiences, or it could be a fictional tale with characters named Wayne. Without more context, it's hard to detail the plot.
One possible plot could be that Thomas Wayne somehow time - travels to the present where Bruce Wayne is Batman. Thomas could initially be shocked at how Bruce has turned out, but then come to understand his motives. He might offer some old - fashioned wisdom that helps Bruce in his fight against crime.
It could be Bruce Wayne himself. Marinette might admire his business acumen and his philanthropy work in Gotham. His mysterious persona as Batman could also be very appealing to her, especially if she has a taste for adventure and mystery.
The encounter could be filled with tension. Bruce might be angry at first, blaming Thomas for leaving him so early in life. But as they talk, they start to understand each other better. Thomas could share his own hopes and dreams for Gotham that he never got to fulfill, and Bruce could see a new side of his father. The description could include details of their body language, like Bruce clenching his fists at first and then gradually relaxing as they talk.
Often, she is depicted as being just as intelligent as the male Bruce Wayne. For example, she has a sharp mind for detective work and strategy. She might be able to quickly analyze crime scenes and figure out the motives of the villains.
One interesting scenario could be Thomas Wayne seeing Damian's combat skills and being both proud and a bit shocked. After all, Thomas may not have expected such a young and fierce fighter in the family. Another could be them having a deep conversation about family values, with Damian learning from Thomas about the Wayne legacy from its very origin.
Often, it starts with curiosity. Damian may be curious about his grandfather he never met. Thomas, on the other hand, is intrigued by this young Wayne. As they interact more, respect grows. Thomas sees Damian's potential and Damian looks up to Thomas as a part of his family's great history.