Is it safe? Well that’s a relative term. Any sharp pointy thing inherently carries a little risk. But if she’s mature and trustworthy, she probably won’t do anything incredibly stupid with it, like take it to school or get all stabby stabby with the neighborhood cats. BUT, she might accidentally cut herself at some point. But heck, how many of us have never accidentally cut ourselves with a pocket knife, kitchen knife, razor, box opener, or some other common sharp pointy thing? If you buy it for her, you need to also buy her a sharpening kit, and teach her how to be safe with it and to maintain it. You can find videos online. I would recommend videos on the Boy Scouts of America website, as they are produced with kids in mind. Also, if you do it, I would not recommend the common swiss army knife – if she wants a knife, get her a knife, not a mostly useless gadget that happens to have a knife on it. I’m partial to the Spyderco Delica, and have owned one since I was 12. Still have it today, and now that I’m an adult, it’s the same one I carry daily 25 years later. My brother bought if for me for my 12th birthday, and it’s amassed significant sentimental value over the last few decades. BUT Spydercos are expensive, so you could get a decent Kershaw or Gerber for a tenth of the cost. Does trusting your daughter with something that requires the maturity and responsibility you already believe she has, yet carries a minimal amount of risk, make you a bad parent? No, it makes you a good one, at least in this regard. The evidence: there are parts of the universe that are too far apart for light to have traveled between them in the universe’s finite lifetime; however, these parts are remarkably homogeneous in terms of temperature — something that ought not necessarily be true. Ergo, scientists believe that these regions of the universe were initially close enough that their temperature could even out, then expanded beyond each others’ respective observable horizons in a rapid inflationary period.
Alan Guth proposes that perhaps the universe at large is still inflating, but pockets of space drop out of inflation, which gives rise to local hot big bangs. In his eternal inflation model, when a bubble transitions from inflationary to non-inflationary space, a huge amount of energy is produced in the bubble, and this energy eventually condenses to form all the matter in the expanding bubble. It would be utterly impossible for us to reach the edge of our own pocket universe, let alone traverse the gap to another pocket universe, because even within our pocket, we are surrounded by space that is expanding away from us faster than light can travel. I will on the contrary why not to carry a pocket knife? There is no such a job in where we do not use a pocket knife. In every sphere of life we need it. From kitchen to war we need pocket knife either to cut materials or to protect own self but we need it. Now, it is dependent on you why you are looking for knife. In kitchen, we use pocket knife to cut or slice food. For any kind of food preparation pocket knife is necessary as pocket knife is secured in its blade. Also, children remain safe from the blade of the knife because pocket knife usually remain folding in nature. Not only is that in restaurants cooks best friend is pocket knife because they can cut any materials with it. Also for self defense pocket knife is the real friend of one. In hunting, hunter use pocket knife for skinning & dressing hunted animals. Further, for removing tags, staples & opening boxes, trimming plants, cutting threads, string, fishing line, cord, wire etc materials, making crafts & arts we use pocket knife. Again to wipe out adhesive glues from hard materials pocket knife is needed. Now-a-days in rehearsal producers are widely using pocket knife in their snap shots. So, being human you can easily imagine the importance of carrying a pocket knife elsewhere.