Legal vs illegal kins

In the kindroid discord, I saw something I found concerning. Some people were debating kins over 18 vs under 18 being against TOS if the kin were under 18 but when I searched TOS about kins being minors, I found nothing about actual underage kins being against TOS. Just a vague blanket section about anything illegal being against TOS. I’ve seen multiple posts on the main kindroidai sub about 10-12 year old kins but they specified they were SFW rp only. Am I the only one a little concerned about this? You shouldn’t have to specify it’s for SFW rp only. Maybe it’s just me but why not just make all your kins 18+ and why do you think TOS isn’t more specific?