I know that usually, unless Shockwave is involved, “aligned” continuity Transformers/Cybertronians are born
from the Well of AllSparks
fully functional and adult-sized. There is no procreation and no physical growing up.
But Transformers do acknowledge differences between young and old, which are based on
time spent alive and
life experiences, and it’s normal for them to have mentors and students.
Since they can also form relationships like friendships, analogies to human families, and even feel love, I guess loving couples could technically just loiter around the Well of Allsparks until it creates someone they can adopt?