Hello so i was testing and experiment on my 2 tamagos and so i took horrible care of them at the age of 4 they became oldies and were able to use the date place!!!!
Woah, the youngest my Tama-Gos became oldies was age 5! Tamagotchis usually cannot go to the Date Place until they are 5 or 6, but I assume they can go as soon as they become oldies.