I suppose there are certain talents that you either have or you don't, but that's an entirely different thing from skill. Frankly I have more respect for the skills a person has as a result of the work they do than I have for a talent they were born with.
There is no "...too late in life" when it comes to developing a skill. The unstated implication of that person's comment is that you can't be a good artist because you started too late. This is absurd. First of all, you started learning how to see and how to draw when you first started doodling, not when you bought the sketch pad. Second, it's not when you start, but how well you learn that determines the quality of your work. Third, you have no idea how young 30 is.
Yes, it can take years to get good at a skill, but if you are better now than you were last year, then that's really all that matters.
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Never let the weeds get higher than the garden,
Always keep a sapphire in your mind.
(Tom Waits "Get Behind the Mule")