We had a set of siblings that the mother insisted on keeping the girls at the same level. I believe they started at the same time (before my DD was on team so I could be wrong) and despite a 2 year age difference, Mom always demanded they be together.
Older sister was a truly beautiful gymnast. Gorgeous lines, mature for her age, progressed quickly but was held back to stay on level with her sister. She ended up getting discouraged at old L6 but carried on. She started training for optionals with the plan of "skipping" L6 and going straight to L7.
Younger sister was a cute girl who had many of the same skills as big sis but they never looked quite as good. She was also pushed a little to keep up with big sis and developed some freaky crazies during her L6 year. During her L6 year, the coach had to come and stand on the floor while she did her final tumbling pass (scared of the back tuck). She started training for optionals with the plan of competing L6. Mom threw a royal fit but HC held firm that lil sis was NOT going to L7.
Mom said older sis had to compete L6. HC said no. Older Sis then developed back problems and quit before competing in a single optional meet. Little sis did a year a L6, developed an eating disorder, crashed and burned at state and left the sport.
So I guess mom "won".....both girls are still at the same level. :-(