A custom function to have all users login using the WooCommerce My Account page if set

function.php

<?php
/**
 * Update the Login URL to the WooCommerce My Account Page.
 *
 * @param string $login_url    The login URL. Not HTML-encoded.
 * @param string $redirect     The path to redirect to on login, if supplied.
 * @param bool   $force_reauth Whether to force reauthorization, even if a cookie is present.
 *
 * @return string The login URL. Not HTML-encoded.
 */
function mytheme_use_myaccount_login( $login_url, $redirect, $force_reauth ) {
	if ( function_exists( 'is_woocommerce' ) ) {

		$woo_myaccount = wc_get_page_permalink( 'myaccount' );
		if ( strpos( $login_url, 'wp-login.php' ) && ! empty( $woo_myaccount ) ) {
			$params = array();

			// Check for a redirect parameter.
			if ( $redirect ) {
				$params['redirect_to'] = $redirect;
			}

			// Check for the reauthorization parameter.
			if ( $force_reauth ) {
				$params['reauth'] = 1;
			}

			// Add parameters if needed and update the login URL to the WooCommerce My Accounts Page.
			if ( ! empty( $params ) ) {
				$params = urlencode_deep( $params );
				$params = build_query( $params );
				$login_url = $woo_myaccount . $params;
			} else {
				$login_url = $woo_myaccount;
			}
		}
	}

	return $login_url;
}
add_filter( 'login_url', 'mytheme_use_myaccount_login', 10, 3 );