Mhm
But they can also faze into a human form...and...it also depends on who their birth mother was.
If their mother was a human, they'll take a more human or angelic normal form...
If their mother was a demon, they'll take a demonic form
The demonic form being Chan-Chan's form, coz his mommy was a demon
The children looked that way bc they're parents did, but Chandler's dad was an angel
The same as his wife's father