For decades Japan has been struggling with a sluggish economy, held back by a deep resistance to change and a stubborn attachment to the past. Now, its population is both ageing and shrinking.Japan is stuck.When I arrived in Japan for the first time in 1993, it wasn"t the neon-lit streets of Ginza and Shinjuku that struck me - nor the wild "Ganguro" fashion of the "Harajuku" girls.