Isn't it moreso that old people are daft and impatient? I am nearly 30 and can figure out systems, both new and old, and find that patience and faith is vitally important. I notice my parents don't even bother to explore the menus or dropdowns or well..much of anything, before they demand to be helped. It's gonna be very hard to sell me on menus being ageist. I hope you can read my frustration..
Also, there should be no stigma for growing old. We all grow old and eventually die. Very natural thing. What we can do is to enjoy every day and be kind and loving to other people, looking more for what you can do for them than what you can get out of them.