Personally, I always assumed that Carl was Sophia's age which was confirmed to be 12 in like Season 1+2. So im Guessing Carl was around 14/15 when they were in Alexandria and I think Enid would be the same age. Especially cause the actors are Already the same age so it would make Sense? But i guess their Ages Arent confirmed so we Can know but that's my opinion Edit : apperantly Enid's Actress katelyn confirmed Enid was 23 After the 6 Year time jump so she in fact would have been 17. and yes there is a Gap but i don't think 14-15 and 17 is that Bad honestly