I did a lot for free/ low cost at school that had little impact on DM.
My only extra-curricular out of school was dancing. She liked the idea of twirling around being dainty in leotards and ballet tights, and signed me up at 7. I liked it and by the teen years she got fed up with the onerous duty of taking me 2 miles by car twice a week as I went up the stages. 30+ years later she still frequently moans about this gallant sacrifice of a weekly evening and weekend morning.
She didn't sign me up for Brownies as she found it dull when she did it. No swimming lessons, why would anyone want to swim in a cold swimming pool, so she was content to leave me be a non-swimmer until I rectified that making my own arrangements that didn't inconvenience her when I was 16.
With hindsight she was a great parent as long as your interest very neatly aligned with her interests and convenience. Casual playing out wasn't an option with the location of where I lived, and she had double standards on female and male expectations.
My DCs have done a lot, but we're lucky that many things were low budget and walking distance, swimming being the outlier. Nothing has been high intensity, expensive, or heavily committed. DS1 is dyspraxic, so the years of karate and swimming have been good for him and his co-ordination. DS2 is more into football which has been facilitated. There was also scouting. If they miss a week occasionally with tiredness, it's not like they're letting a squad down. With autism in the equation, they're not motivated by casual socialising, so having some beneficial activities through the week is good at getting them out of their teen-pits for some movement and semi-structured social contact beyond school.
I look at some people where the commitment and travel is far greater and don't envy that, but I can understand the benefits if the child loves it and finds talents.