i am not able to find some alexa skills on my alexa app for kids which are available in amazon app store /

Trying to enable Suppandi's Crazy Brain-Teasers on my Alexa App, not finding it. This was one of my favorite readings back in the days.
This skill is in India but I am in US All the other skills are working but the kids skills are not. Anyone knows if we contain to enable skills for kid first and then find it ?
hashtag#alexahashtag#amazonhashtag#voicehashtag#skills

Source: amazon.com