LOL..Fortunately Mine at home doesnt mind a younger Dom, shes 14 yrs My senior.
As for O/L, I seem to attract younger girls, so as long as there is a connection and shes sincere in her service, I have no issues with age.
I'll add this, Wwe are looking for a second sub, so now, I do think of age as I'm looking for one to be an O/L to R/L with Uus. So that now being the case, I'm drawing a line at about 25, this seems to be a point at which people make better choices, and also considering Oour ages too.