My 7yo reads to himself now, but we still read together on occasion at the beginning of the year, so I kept it up with him until he turned 7. He's an advanced reader though, so I would imagine if it was more challenging for him to read himself, he may have been more open to continuing to read with me. Some of my fondest memories are reading longer stories with my parents before bed, so I hope one of my other kids will indulge me!
Bedtime stories stopped being a nightly thing with my oldest when he started reading longer chapter books on his own every night, around age 7. But, he will often sit in on his younger sister's bedtime stories and the two of us do sometimes read chapter books together. It's just not really a bedtime routine anymore.
My kids read very well on their own but at ages 8 and 10, they still enjoy me reading to them. It is our snuggle time to read some books and be comfy before bed. They read chapter books by themselves but still enjoy books that I read to them.
Both of my boys are older and good readers but my 10 year old still enjoys having me read to him once in a while. We have done a few chapter books this way and it's a nice bonding experience for both of us.
My daughter is 6 and we read to her every night and let her practice her sight words so she can learn to read on her own. Starting in 1st grade, our school mandates reading each night, but this is just the kids and not with the parents or guardians.