I'm a mum to a competitive swimmer and the regime is bloody hard. We have cut back to 4 sessions a week plus a land session. He also spends time in the gym doing cardio.
His diet is carefully watched before bigger competitions- carb-loading etc. We need to watch what medication he takes as some asthma meds are banned while he us "in competition".
DH and I have trained as judges and timekeepers to support the club. We spend a fortune on goggles, jammers and other kit.
DS rarely goes out on a Saturday night as he trains the next morning, sleepovers need to be after school on Friday (but not if he's competing on Saturday). We don't go away for weekends. His friends can make comments about the amount he eats (huge quantities, especially after a 2 hour pool session).
DS has just turned 11, represents his County and is aiming for regional times (about a second off). He was scouted at 8, competed properly from 9. Sometimes he hates it, mainly he loves it- lives for it.
If she doesn't want to do it, would you want this to be her life? It's a massive commitment from you all. I'm not sure we'd have gone in to it so lightly if we'd known it would take over everything we do.