Hi and welcome @ReluctantSwimMum
I have two who swim, both 6 days a week, although total hours are similar to yours for my eldest and less for my younger one (they are 15 and 12). We are lucky to live very close to the pool so I mainly just drop off and pop home, we also share lifts with someone else. I do try and go in and watch at least once a fortnight, mainly just to catch up with other parents. It is good to develop a network at the club and get to know people.
It’s meets that I find a huge time drain, it tends to be me who goes to them as I’m an official. I also have a younger child who doesn’t swim yet, so I am very conscious that he loses time with me then, and I need to try and balance things and make sure to do other things when we do have free time.
Where possible I try and avoid doing whole weekends at meets now, other than counties and regionals where it is unavoidable, and try and just enter one day of an open meet so that it doesn’t take over completely.
It is a very all consuming sport though! And that’s just from my experience at a small club where the hours are comparatively low, it must be even more so at a large club on higher hours.