Age restriction for kids to go to mountains.

I am planning to visit to jungfrau ( on the top) , mount titlis and mount pilatus with my wife and aprrox two year old daughter. my question is there any age restriction for the kids to take to mountain heights.
pls lets me know i it safe or not to take my little daughter along with me , so that we can plan accordingly.

Hello vikas18feb! Generally, there are no age restrictions and it's no problem for little children to spend a few hours at such altitudes. However, you should always be aware of signs of high altitude sickness, which may involve nausea and diziness, but this goes for adults as well. You'll find good further recommendations at the Jungfrau railways website.