Both our daughters played basketball. They are 16 months apart so the younger daughter played up with her older sister until her junior year in HS. It became clear at around 7/8 that younger sister would eclipse big sis. She was faster, taller, more aggressive and more obsessed with basketball. We made sure big sis had her own things outside of basketball but eventually it was both of their main activity. Both played 4 years of varsity basketball in HS at different schools. Cut to college and big sis had D3 opportunities but wanted a different college experience. Went to Notre Dame. Never missed playing but missed the comraderie so managed women's basketball the remaining three years. Graduated 3 years ago and is an environmental scientist with her own condo in DC. She looks back with happiness to her basketball days and has no regrets stepping away in college. Middle daughter had a great career at Northwestern. Starter on a Big 10 championship team. Two time captain, three time all defensive team and all academic team. Was invited to the combine but chose to step away after college. Now works in basketball operations with the Spurs. The baby boy also played basketball but always loved baseball more so he stopped playing basketball his senior year in HS to focus on baseball.
The key for us was they all picked their path, not us. When they were little, whoever wasn't playing always got dragged to support whoever was playing (fun fact: younger daughter's first summer league game was against her older sister...they had to jump ball and I was a lunatic cheering for both teams LOL). They continue support and cheer for each other and want to spend time with each other. My middle daughter is his sports buddy (like last night she heckled him from right field for not jumping higher to rob a HR) and big sis is more of the soft landing. But the way they are there for each other...that is the absolute best feeling as a parent.