Beginners start on the practice chanter, an inexpensive instrument, about the size of a descant recorder. This is an ideal way of learning basic fingering techniques and developing the ability to express tunes musically. I can advise on the how and and where to buy a chanter.
Although kids can start earlier, a good age to start is around 8 or 9. But there is no upper age limit!
I am DBS checked and am happy to provide a copy of my certification if requested.