I want you all to know that the meeting went very well! The dogs I met were lovely, everything I had hoped the breed would be. <3 The breeder was able to share a ton of tremendously useful information with me. I'm supersuper excited about all this.
My age wasn't a concern at all. I mean, I wasn't purchasing a puppy, but I have a feeling, as all you said, that as long as I present myself as mature and responsible (which I am), it shouldn't be a problem.