About an hour. Some people take tuk-tuks part of the way. If the kids are over 6 years old they should be fine, under that you may have to help them or take some rest stops. Best to get there early before it heats up, you'll be in the sun most of the way.

This from management post

There isn't really places to camp. You can walk from town (hostels and homestays) to little Adam's peak.I saw two camping sites in town not on the peak.

I was panting as I climbed up to the peak. I would say the last few steps were a bit of uneven; below that was just flat lush green plantation and it is doable. Just rest for few seconds or a minute to catch your breath as you climbed nearer to the peak. There is no need to rush. Just enjoy the scenery especially when you reach the peak.

The walk up to the final accent to the top is just that a pleasant walk along the tea fields. If you see the tea plantation workers ask to take a photo with them and give them a tip for thanks those people work very hard for about a US dollar a day and are sometimes supporting families at home. If you want a easy great view hire a taxi and take a day trip to Nuwara Eliya maybe spend the night there. A very beautiful place.

Ты сможешь это сделать:) главное не планируй большой пик Адама с остальными в один день.

Hi Senji! The last kilometer is steep and contains approximately 314 steps. Only you can decide if you will make it, but I've seen people of all ages make it to the top. Take it in your own pace and try to go when the sun is not so harsh. Good luck!

I did see people with small children on the way, so definitely you can do it. But if you have a baby-backbag, it helps. I also saw a man who climbed the hill with crutches. Definitely not dreaming the impossible. :)

I wouldn’t try it. But i saw a few who did.

It’s not a strenuous or long climb, I think it’s doable.