Why my nftables do not block DHCP ?

 nft

    
table ip Tip {

    chain chIN {
        type filter hook input priority 0; policy drop;
        ct state established,related accept
    }
    chain chFW {
        type filter hook forward priority 0; policy drop;
    }
    chain chOUT {
        type filter hook output priority 0; policy drop;
        udp dport 67 drop #DHCP
        udp dport 53 accept
        tcp dport { 80, 443} accept
        ct state established,related accept
    }

}