I learnt to somehow tie my shoes when I was 5. It took a lot of time, and most of the time I ended up untying what I had tied so far, or else making a mess of a tie (6 knots and then a successful tie).
However, I finally learnt to tie my shoes in a manageable, albeit unorthodox way when I was 11- it was partly by observing people doing it, and party my own invention.