I think it’s a great idea! The challenge might be the marketing part since you will need to reach the right audience. If you are good with social media that will be very helpful!
I think that’s a nice niche. Good idea. Facebook marketplace?
What you need to do is market research and product viability research. Here is a good explanation of this process...I don't know anything about this lady and the class she is promoting but I thought her article was good. https://catleblanc.com/how-to-know-if-a-product-will-sell/
50/50 tbh, it can be handy for those unable to write but I think it would be better for you to maybe teach it as a workshop class for kids ? Or those who like to journal write etc
I might be hard to compete with chat gpt
I think this could be good, especially for a lot of men that may have a hard time expressing their feelings