It depends on version and how much you've paused it. When your Tamagotchi has lived for 72 hours in the adult stage, you're eligible for a matchmaker visit. So yes, about 5-6 years of age on the Tamagotchi Connexion versions 4 and 4.5, and about 6-7 years of age on any other version.
My tamagotchi was a Mametchi 4 years old never paused resetted not in contact with wateror any thing like that and the matchmaker came It left at 5 years old. If anyone knows what happened please help. h34r: