
Writing is a skill and anybody who develops an interest in that skill can be a successful writer. Age is not a barrier when it comes to writing, children of all ages are writing, while adults of all ages are writing. There is no limit to the exploits you can make if you understand the arts and craft of writing.
Just as other vocation skills like fashion designing, hair stylist, event decorator, bakers and so on, writing is also a great vocational skill that can be learned and developed over time. It is amazing that just as we have millionaires in the fashion industry, event decorating industry, so we have millionaires in the writing industry.