My older ds age 7 was very scared of fireworks up until last year. He's got a real thing about loud noises. He's getting over it as he gets older though.
Because of this I've never been able to take him to a fireworks display so we've always done a crappy box at home with him watching out of the window.
This year if like to take him to a funfair and fireworks display in the park as he'd really enjoy it now, but, we have the baby (5 months).
I'm not sure if I'd be mad to take him, he'd be all wrapped up in the pram with his coat and footmuff or I could carry him in the sling. I expect we'd get home around 9pm. The baby has a really good bedtime routine and is usually tucked up in bed by 8pm.
The other option would be for me or dh to take ds1 and the other to stay home, but we'd like to all go, we could ask grandparents to babysit but I'd feel a bit cheeky asking when one of us could stay home.
The reason I want us all to go is because I hate rides so dh would do all that but I really want to see ds face at the fireworks I love bonfire night.