he's only 7 months younger than Tomic : please note that Tomic was born in late 1992.
At the same age, Tomic had done much more.
Anyway, what he's done is good, but it's not so exceptional comparing to Tomic, Krajinovic, Bhambri, Harrison, who at the same age, had all reached junior grand slam semi-finals.
To be more precise : at the same age, Tomic had won a junior grand slam one year ago, been ranked number 1 or 2 in the juniors, won a (small) challenger and beaten Starace in a grand slam.
Moreover, I believe that the competition in juniors is now lower than it was in 2008 when there was Dimitrov, Yang Tsung-Hua, Tomic, Krajinovic, Bhambri, Harrison ...
So far, generation 1993 has done nothing.