First-time fathers in their 50s or older are becoming less unusual in Japan, where the average age for marriage keeps going up.

Older fathers may get exhausted more quickly after playing with their kids and be burdened by worries about their age, health, and future after retirement. But on the positive side, they seemingly have more time and money to devote to their children than younger fathers.

Makoto Arakaki, a 51-year-old professor at Okinawa Christian University, has a 2-year-old daughter.