UPVC tilt and turn windows can be adapted to incorporate many different glass types. Most home owners opt for single-glazed glass for their properties, but it pays to explore the other glass and glazing options available.
If you have young children, then installing toughened safety glass in their bedrooms makes good, practical sense.
You may also wish to consider installing childproof locks as well, as these enable you to have full control of opening and closing access to your windows.