Oh, I am just catching up on this.
My 14yo son tested positive yesterday. His school dropped the mask mandate after spring break, all the while with random cases going through the school. My son avoided all of it, even when playing lacrosse with some of the kids who got sick. He's been out of school a full week, hanging out at home and the pool, and tested positive yesterday. My best guess is that someone at swim team time trials was positive on Saturday and didn't know (or didn't care) and he got it there. He is literally outside or in his own room like 97% of the time, so it's really random he got sick while being outside. He had a fever and headache yesterday, coupled with a stuffy nose, but today only has the stuffy nose.
My daughter (16) had it in March. None of us got it when she had it, and she was required to stay in her room for the duration (as my son is now, except to get to the basement shower). I take food up and leave it outside the door. She tested positive for 11 calendar days. She only ever had a stuffy nose and tiredness. Her school has a rule that you must have a negative rapid test to return to school, regardless of the number of days (she got it right before spring break so only missed three days of school). We will use that same rule for our son.
My huband and I have so far managed to avoid it, and since our kids are so old, they can entertain themselves in their rooms with electronics and never really need to leave. Which is nice because it really narrows down the risk of transmission within the house, and we will wear masks if necessary if I have to be near the kids. My husband leaves it all to me. (Which is fine because I'm a SAHM and he's a work in the office dad.)