interesting question.
does PHYSICAL age matter in gurmat? i don't think so. mental age more so, and spiritual age matters most.
for example, physically, i should be a mature adult. emotionally, i'm about 15, and spiritually, i'm a toddler (you know, 2-3 years old, think they know everything, talk back to elders, and fall on their faces a lot
).
so ya, i think a lot of different things can be meant by "age".