Age Criteria

age = int(input("Enter the age: "))

if (age >= 0 and age < 12):
	print("Kid")
elif (age >= 12 and age < 20):
	print("Teenager")
elif (age >= 20 and age < 30):
	print("Young")
elif (age >= 30 and age < 45):
	print("Mature")
elif (age >= 45 and age < 60):
	print("Experienced")
elif (age >= 60 and age < 75):
	print("Old")
elif (age >= 75):
	print("Senior citizen")

Run