It's good for kids to have a pet around the house.
Encouraging kids to take care of a pet is really good for them.
It is good for children to have pets. でも間違っていませんよ!
他にも次のように言えます。
ーIt's good for kids to have a pet around the house.
「家でペットを飼うことは良いことです」
ーEncouraging kids to take care of a pet is really good for them.
「子供にペットの世話をするよう促すことはとても良いことだ」
to encourage で「促す・育成する」
to take care of ... で「…の世話をする」
ご参考まで!