Hi Eze,
I have a pair of 15x70 - highly recommended. However, after a few mins, they can get a bit tiring.
For kids that age, to be honest, I think they'll struggle unless you have a decent mount for them. 2ndly you need to adjust them to fit their eyes and then focus - becomes a hassle. In the end you don't know if they really end up seeing anything or they just say they do. This is based on experience as I tried getting my kids involved.
As for a tripod - anything cheap IMO is a waste of money. Your better spending the $ on getting something decent and made for that size.
Check out the projects and articles on making a parallelogram mount in the forum. I made one from tube aluminum for around $40 - you will still need the tripod component to buy or possible make - they're great to use and no more tired arms.
Good luck
