Children these days don't spend enough time with their grandparents.
Kids these days don't spend a lot of time together with their grandparents.
Children / Kids = 子供
今の子供 ＝ Children these days, kids these days
時間を過ごす = to spend time
Don't spend enough time = 十分な時間を過ごさない
Don't spend a lot of time = たくさんの時間を過ごさない
どうぞご参考に！
日本 
