Totally agree with all above - but don't forget the return journey. After school clubs are an important part of senior school. If DCs come out at 5ish - what is the return journey like? What time will DC be getting home?
Also, don't forget the amount of stuff they need - instruments, sport kit bags etc.
I had an hour long bus journey each day to and from school. I was frequently exhausted, always head-achy, and homework always felt that little bit harder than it prob was.
I anticipate lots of people will take this in their stride - just adding my personal experience.
Somewhere on the forum is a thread where another parent questioned this - and it all became a little defensive. Very tricky one and probably no 'one answer' as all DCs different.
But I hated it - and wouldn't wish it on my DS. Sorry.