If your argument for why it works is "one of the best athletes in human history did it," well... not super convincing.
This kid:
https://247sports.com/player/nyckoles-harbor-46114050/
Is being recruited by every major NCAA D1 Football team (and possibly going to Michigan) while training to go to the Olympics as a sprinter. Does that describe the level of athleticism of the average one level a year club gym kid? Probably not.
In reality, Harbor is going to end up being just a better than average football player and a mediocre sprinter, when he could have been a top 3 NFL draft pick if he focused on football.
That’s entirely his choice.
Playing multiple sports is possible at a high level, in high school and at at any level.
How high they achieve is based on the talent they have and the work they choose to put in. And having freaking coaches open to the possibilities and giving the athlete the opportunity. If one of Deion or Bo’s coaches/teams shut them down they would of been one sport athletes. Jim Brown was very successful college football and lacrosse college. Not many people know how successful he was at lacrosse but he was. It can be done.
The problem is people like yourself that think if you don’t go top whatever in a draft, make it the Olympics or play NCAA Div 1. You are a- unsuccessful and B-wasting your time.
OP the answer is yes, if your child wants to do gymnastics and another sport it can be done. She can do it. Hopefully she has coaches who will support it and make it happen for her.
I personally know optional gymnasts, L7, 8 and 9 and Xcel. Who are doing or who have done gymnastics and
Diving, soccer, cheer, basketball, lacrosse, HS gymnastics and track at the HS varsity level. many of them qualify to HS sectionals, some to HS states.
1 competed Div 1 track in college, 1 competed Div 1 diving in college. These 2 were L9/10 gymnasts. They did at some point exclusively transition to their HS/coll sport but did do both for a time during HS. Since graduate.
Another is currently diving at a D3 school and doing college club gymnasts.
One is a HS senior being actively recruited for college track. She was L8 and did both gymnastics until her the middle of her junior year, when she made the choice to concentrate on track.
My L8 daughter and her L9 friend and teammates intend to continue their HS sports and get their senior plaques at USAG states next year. My daughters feels her other L8 HS friend will be making this year her last at gym. My daughter just feels her heart isn’t into gymnastics any more.
Mine is happily competing L8 at club. Using the L9 skills she has at HS gymnastics. And looking forward to varsity lacrosse in spring. She would like to compete gymnastics in college at the club level. And she is pondering trying for a walk on type situation in lacrosse at a Div 3 school ( I don’t see her getting that far). But she would much rather do club gymnastics and absolutely will be the third factor for her on the list for college choices after area of study and location. Her parents put cost higher up on the list
Yes it is absolutely possible your kid can do both.
to add, the dude I dated in HS was a 4 letter varsity starter. State track champion and record holder for quite some time on the relay team, football and baseball