Old age

I was accompanying dad for breakfast since i was on leave today. We went to his usual hangout place and if started showing me to all me his neighbourhood friend. One side i was flattered, the other feeling was, my dad is getting old. One of the subject that they were chatting was that the profession of a barber. If a person works as a barber, what other profession can they jump into? None, they said. Barber is a lifetime profession. Think deep about it. What other profession involvement of a single lifetime?