I'm just basing my opinions on the aesthetics from the pictures, but I far prefer the Lapin blades also sold by Ragnar. The wood jewels look overly decorated and the pommels look like the kind thing that will chip out if given to a young person. They look like they are designed more for eye candy than they are for using. That is just me though.
Having kids myself, I wouldn't expect anything I gave them at age 7-14 would last a lifetime. Give them a quality knife (no need for it to be pretty) and take the time to show them how to use it safely but on projects that are fun for kids to do. Spend time with them while using their blades in the outdoor setting. That way, you'll give them a hobby to last a life time and that is much better than an inanimate object.
Remember, you are drawn to knives and knife styles because of the symbolism it hold for you. Your kids may (most likely) have a different perspective, so find out what their wishes are. They might like a SAK with all its gidgets a thousand times better than a traditional pukku or perhaps a slightly tactical but similar sized fixed blade. Here is a good example, Brian Andrews made his son a couple of really cool knives, but it seems every time I meet him with his family in the outdoors, his son gravitates towards the mora with the red plastic handle and guard more so than the fancy one made by pops. I bet he really digs that red plastic and thinks it much more cool then the fancy burl of his fancy (by adult standards) knife.