If "growing up" means losing the joyful, experimentative, problem-solving flexibility that is innately childlike, then we Logo-ers must reserve a special corner of our personalities that will never "mature". Chances are you have already done that, and your love for Logo stems partly from the opportunity that it affords to exercise the "never-neverland" option. This article discusses classroom activities related to Logo.
Harris, J. (1986). Euler and the turtle. National Logo Exchange, 4(7), 1-2.