Rather than thinking about the age you start playing at think about the progress you will make. Some people who started playing in their teens can't play well in their 50s. But if you give it an honest try with a good teacher you'll make better progress in 2 years than some people do in 20-30 years of playing

P.S. The only thing I know is too late to learn in music is developing perfect pitch if you didn't develop it as a kid. But perfect pitch is useless and relative pitch can be developed at any age.