Simplify the following text for a Grade 9 native English-speaking person.
Original: Most apprentices were males , but female apprentices are more common nowadays , especially in crafts such as embroidery , silk-weaving etc. .
Simplified: Most apprentices were males , but female apprentices were found in crafts such as seamstress , tailor , cordwainer , baker and stationer . Apprentices usually began at ten to fifteen years of age , and would live in the master craftsman 's household .