Under new measures to reform the welfare system, a "Youth Guarantee" for 18 to 21-year-olds aims to train young people or get them back into work.
Kendall told Sunday with Laura Kuenssberg these proposals would see an overhaul of the apprenticeship system so "more people have the chance to train" with young people offered "the opportunity to be earning or learning".
Asked if those who did not take up these offers would lose benefits, Kendall replied: "Yes."
She said this would transform opportunities for young people.
"If you are out of work when you’re young that can have lifelong consequences in terms of your future job prospects and earning potential."