Each community, when writing up their Rules and Constitutions, set age limits. Some set them at age 28, 30, 32, 35, 40. . .some as their number are getting smaller have even extended that number to inlcude older vocations. As my friend says, it is what it is. There's nothing 'wrong' with those limits. It's just a number they've decided. I'm not sure why you think formation is geared to those younger, and how that would affect someone older. It's not as if there will be age related classes Because in all reality, the formation classes include things like catetchism, information about the order, etc. Some people, regardless of their age, know these things, and some, have to start from square one.
I took have been rejected for my age, at age 35. I haven't been leery or stuck on that. At first, it annoyed me, but it literally was just a 'What? Because I'm 35? Lovely.' And then I moved on, because there's nothing I can or could do about it. You know? Save the stress and the worry for something I can do something about.
There have been a couple of communities that have said that they would look at me as an individual case (which is, IMO, a lot better than being told straight out that they won't consider me because I'm too old, which a few have done as well).
However. . .I continued to discern with those communities, among others, and it just so happened that, for other reasons, those communities were not for me.
I would try to stop being stuck on the age thing. Sounds easier said than done, since as long as I've known you, this has been an issue. But, I would, when praying, just pray that you can give that up into our Lord's hands . Because that may be preventing you from looking at that community objectively and if He is calling you there, you won't be able to hear or see that.
Like AliceMary said, try looking at more than one community. In that way, you can see how He may be calling you to one and not the other. Even after I knew I was called to the PCPA, I still was a little hung up on the idea that I'd thought I was called to Carmel, so for me, I stil used those plane tickets and visited them, just to confirm my vocation, one way or the other. It was one of the wisest moves I'd made.
I will keep you in my prayers.
God bless you!
(BTW, I am at my parents in Payson. I can't go home because I'm snowed in! It hasn't snowed ALL winter and finally, it's snowing. Unbelievable.)