Is it ok to leave almost 16 DS overnight...in charge of 11 year old DD

[Kitsmummy]

DS is 16 next month, v sensible and I wouldn't worry about leaving him overnight for one night haven't done it before but I'd be happy with it, as would he).

But is it ok for me to leave him in charge of his sister too? She is 11. Whilst I feel that they would both be fine with this, I'm not sure if it would be fine for me to do this...or really bad parenting

Is it ok????

Is the 11 year old year 6 of primary of year 7 of secondary?
I would if secondary and they're both sensible. I was living alone shortly after turning 16, and definitely would've been fine watching a younger sibling, especially if they're secondary school age.

I would follow this...

Would the 15 yr old be able to cope if they both got noro virus or know what to do if the switch board was tripped?

My 14 yo would.

My mum used to do this and I hated it, especially the responsibility of looking after the younger sibling.