On the other Hand it you go by the ages the characters had originally during Death of Superman. Dick would now be 33 or 34, and and Tim would be 25 or 26.
Btw. Damian has a similar problem if you by the original order of events. Batman met Talia the first time when Dick was already in collage. Meaning Damian being 14 would make Dick also something like 33 or 34.
If you go by the originals Jason would have only been 12 during Judas contract.
And Tim becoming Robin at age 10, is also not really working with how he was written back than. That would fit with comics from Dick's and post crisis Jason's early time as Robin but not with Tim's.