[roel_v]

Because sometimes for loops are useful. It's no use trying to list up all use cases of for that are safe and/or useful, and prohibit those that aren't. There is a trade off between designing all sorts of safety checks into a language and raw power, and C++ mostly errs on the side of raw power. Which is largely why it's so prevalent and dominant.

I own a pneumatic nail gun that has two rather rudimentary safety features in the form of a trigger lock and a switch near the end of the 'barrel' the prevents it from being activated without the barrel pressing against something (in normal use, the wood you're nailing). It's rudimentary and still accidents happen with nail guns. I sometimes purposely circumvent the safety measures to get something done, e.g. when I'm shooting nails under a weird angle. It would be possible to think of many more safety features - allowing the gun to be operated only when activated with two hands (preventing one from shooting in one's hand), having all sorts of electronics that detect the surface that is being shot into, etc. Not a single one of guns would get sold because they cripple the way you work too much to be convenient.

[betterunix]

"There is a trade off between designing all sorts of safety checks into a language and raw power"

This is a false dichotomy. Safety checks can be disabled if they become a performance problem in languages like Lisp. Safety checks can often be removed by a good compiler when the compiler can infer that the check will always be satisfied.

C++, however, provides nothing by default -- as opposed to being safe by default, and allowing programmers to be unsafe if they explicitly request that.