You’ve just got to love his determination. Most parents sit on the sidelines while their kids do gymnastics, but not Ashley Mills. This 47-year-old father from Melbourne, Australia, puts his all into learning gym skills with his daughter, Alex. Going by the online name MyGymDad, Ashley’s game attempts at front tucks, saltos, split leaps, and turns show it’s never too late to try something new. The dad-and-daughter duo has earned legions of fans on their social pages. Described as a typical 14-year-old, Alex was just six when she started doing gymnastics and is clearly a natural. For several years, Alex trained hard for 32 hours-plus every week. In the early days, when she came home from gym class and showed some of her skills, Ashley began joining in with her. Ashley says there is definitely a spontaneous element to their training sessions. “I’ve always had reasonable balance, so we just had …