Zak: Dweebiedo is in his early 50’s and has a couple of videos you might find helpful (in particular, you might want to look at the one on an Over 40 FTM Yahoo Group and one asking for questions from older FtMs and answering them in the comments). Nick is in his mid-40’s and began his transition when he was 45. Here are his two videos where he talks about how he figured everything out and started his transition (part 1 and part 2). Kal is in his late 30’s and started his transition at 37. Dylan transitioned in his late 30’s as well and is now 40 and makes really excellent updates.
ItsAMansWorldFTM1 is a collab channel that was started “to give support to the mature FtM community.” The guys range in age but most seem to be in their mid-to-late 30’s. OutLateButGreat is a collab channel of LGBT individuals who came out later in life, though it is primarily made up of cisgender gays and lesbians, there are a few transgender people represented as well.
Just as a side note, deaddogx is not 22. I don’t know his exact age, and he doesn’t list it on his youtube so I’m assuming he doesn’t want it out there, but he is at least in his early 30’s (from what I’ve been able to pick up). I know that he still might not count as having an “older perspective,” in your opinion, but I just wanted to point that out. : )