Cloudflare is a decent service, with really good security. Plus, with their tunnelling feature, they’re helping to keep you private. If you just pointed your A record to your IP, that’d be visible to everyone. Instead, your A record is just visible to Cloudflare. Plus it’s handy if you’re using them to forward a bunch of services onto the net. Not to mention all the other security features you can use. DNS records by design, are not private.