I enjoy being human. No problem in society.
Emperor penguins live for about 20 years, smaller species live for only 6 years. Foxes, in the wild, live for only 5 years. If I'd been either one of those I'd have turned up my toes many decades before this question was asked.
But even if age were no problem, can you imagine eating all that raw meat? No thans, I'll stick with who I am.