I guess I don't see how this is really about the parent at all. If your child wants to play a sport that can only really be played with a group, then I would hope you'd find an avenue for that. If not, well, then don't. Rain played soccer for years, spring and fall... I think from age six to age eleven. She enjoyed it most of the time, which is true of most of the things she chooses to do. It was her choice, of course. She also played a season of softball at the Y... actually, it was Y-ball. Soccer worked well for her - nearly all of her coaches were about the fun of playing rather than all about winning, and the coach she had when she was 6-8 was really a wonderful nurturing male role model for her during those years (since her dad wasn't and isn't really part of her life). There were always a couple of teams that got nasty and ultra-competitive, but Rain's teams were generally very supportive. Actually, her co-ed teams were not so supportive, but most of the all-girls teams during the 6-10 years were very much so.
Y-ball was actually too non-competitive for her... she was 8 when she did it, or 9, and they were all about everyone getting to play every position, not keeping score, etc... and there were some good things about that, but it also was frustrating for the kids who were more competent... imagine always playing a game with your 4-years-younger brother, for example.
Generally she'd practive once (when she was younger) or twice (after 8 or so) a week, and then play once a week, for 2-3 months or so. I didn't really think of it as a lifestyle, just 2-3 hours a week. Compared to theatre, it was nothing, time-wise. often took on a job like organizing snacks, and then everyone brought snacks to one game. I went to the games but didn't stay for practice after the first season. It was actually fun, most of the time. The rule was that you could only yell positive things, and everyone followed the rule 99% of the time. We cheered a lot, drank coffee, took toddlers to the playground in shifts, and enjoyed being outdoors. That was my experience, anyway...
dar