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 8,200 websites that are Child Pages Shortcode Customers. We know of 4,490 live websites using Child Pages Shortcode and an additional 3,710 sites that used Child Pages Shortcode historically and 1,743 websites in the United States.
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Get a list of 8,200 websites using Child Pages Shortcode which includes location information, hosting data, contact details, 4,490 currently live websites and an additional 1,435 domains that redirect to sites in this list. 3,710 sites that used this technology previouslyand 1,743 websites in the United States currently using Child Pages Shortcode.
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