I'd say keep reading the bedtime stories for as long as your child is willing to let you!

Eventually you'll reach a point where they feel they're "too old" for that, and I suspect you'll wind up missing that ritual.

If the stories themselves are the problem, then you have two options:

1. Find different books. There are lots of different books out there that are age appropriate, and some will be more or less appealing to adults as well as children. If the number of different voices becomes an issue, then classic fairy tales might be a good option, as they tend to have fewer characters involved.
2. Make up your own stories. This won't work for everyone; not everyone is a good (or even mediocre) story-teller. However, the stories don't have to be complex, or even coherent, so long as they are fun.

I'd say keep reading the bedtime stories for as long as your child is willing to let you! It is not only a great opportunity for parent-child bonding, but it also fosters an appreciation of reading.

Eventually you'll reach a point where they feel they're "too old" for that, and I suspect you'll wind up missing that ritual.

If the stories themselves are the problem, then you have two options:

1. Find different books. There are lots of different books out there that are age appropriate, and some will be more or less appealing to adults as well as children. If the number of different voices becomes an issue, then classic fairy tales might be a good option, as they tend to have fewer characters involved.
2. Make up your own stories. This won't work for everyone; not everyone is a good (or even mediocre) story-teller. However, the stories don't have to be complex, or even coherent, so long as they are fun.