That is such a shame, I really like the loli characters. Can't you just go with the whole 'they have been repeating the year' excuse? I mean, there are many loli characters on Patreon and people get away with it by never mentioning their ages and/or having that character who is clearly too young to be there but still is because they are '18' despite their looks.
P.S. Thank you for the quick reply! I am loving your work.