You can use shortcode for display child pages from the page.
https://wordpress.org/plugins/child-pages-shortcode
Widgets · WordPress Plugins
Get access to data on 8,177 websites that are Child Pages Shortcode Customers. We know of 4,461 live websites using Child Pages Shortcode and an additional 3,716 sites that used Child Pages Shortcode historically and 1,737 websites in the United States.
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Get a list of 8,177 websites using Child Pages Shortcode which includes location information, hosting data, contact details, 4,461 currently live websites and an additional 1,391 domains that redirect to sites in this list. 3,716 sites that used this technology previouslyand 1,737 websites in the United States currently using Child Pages Shortcode.
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