It took me until my 40s to really enjoy Mozart. The thing is, if you approach it from the stodgy perspective of a "Classical Music Enthusiast" then it's easy to miss what's delightful about it, but if you aren't trained in listening to classical music, it's not that accessible.

It's like that with a lot of jokes. If they don't make you grin and laugh, it's hard to "get" what's so special about them. Bach you can kinda just zone into and gradually uncover what's special (or not), and just keep uncovering, or fuguing out, or whatever. Mozart, the joke is here and gone, and if you missed it, the whole thing just kinda doesn't seem all that special.

Like a joke, you can have the punchline explained to you, but it won't make it funny, and you'll question the taste of those who do. But if you find yourself grinning, you'll only find more things to grin at the more you listen. As a kid and young adult I kinda hated Mozart. I was really surprised when I started liking it, more and more, and now I can't get enough.

That's been my experience with Mozart, anyway.