Apostle confirm 16yo are leaving in large numbers

My FIL is a stake president and an apostle recently visited his stake and gave a training to a group of stake presidency. The apostle ask all the stake presidents to give special care to 16 years old youth this year, because a lot of youth are leaving the church at 16 and many 18yo are not serving mission.

My FIL said last year they had 3 people turned down their mission call. And this new generation is impossible to work with blaming social media.