Never heard of ubports. Looks interesting. A 40 year old just learned something from a 13 year old. If this is how you're spending your free time, then you have a bright future ahead of you. Keep it up!
You should consider this interaction as an opportunity to also revisit your ageism. I'm all for encouraging young people, and OP seems a really bright 13 years old person, for sure. But try to keep condescension out of the way. As anybody with children can tell you, we all learn from them all the time. It's not something surprising.
I find hard to interpret "A 40 yo learned something from a 13 yo" in a non ageist way. Seems that people disagree, but nobody has provided a counterpoint.
Actually, the comment in question would have been perfect encouragement in my view just by removing that phrase.