There's no age limit; I know a woman who had jpouch surgery when she was 69 years old. Don't opt for surgery until you are ready. Your recovery will be easier if it's something you bought into. My UC was pretty much limited to the rectum but I couldn't get it under control and opted for surgery to get off prednisone. I don't know about your polyps; that's probably a question for your GI/surgeon? It might be that you are on a faster track to cancer (with the polyps) then the general UC population? Don't take my word for it, ask the medical professionals.
dx proctitis in 1987
dx UC in 1991, was stable until 1998
1998 started prednisone, asacol, pentasa, nortriptylene, ativan, 6MP, rowasa enemas and suppositories, hydrocortisone enemas, tried the SCD diet, being a vegetarian, omega 3s, flax, pranic healing, yoga, acupuncture, probiotics
2000 lost all my B-12 stores and became anemic
2001 opted for j-pouch surgery- now living life med-free