Ahh.. love these questions..
Sled dogs
Bulldogs (APBTS)
How do the old timers and professionals who rubbed shoulders with those old timers keep their dogs safe and active???? Do you not think they didnt try everything to properly secure their dog??? THEY DID.. AND THEY USE WHAT WORKS AND GIVES THE DOGS MORE ROOM AND MORE MANUERVABLITY.. If your chain is anchored with an axel or 4ft welded solid tie out with proper swivles where need be, then an 8ft chain gives a dog a circle of 16ft thats already bigger than most kennels. I use 10ft chains and I have one 14ft chain I use for the dogs to smart and over active for their own good.
So this is why when greenhorns or humaniacs get those breeds and put them in a back yard or a kennel just set on the ground with no reinforcement they loose their dogs and the PITBULL and the WOLFDOG get putdown as such if they act like a dog and do something not condusive to peoples self percieved world. Because the PITBULL may be anything from an AST,
APBT, AMbully, Bandog etc.. and the WOLFDOG could be a 12 generation sled dog with no wolf ancestry inside a 7 gen ped. They look like a WOLF so it must be.. just like with the PIT issue.
If you build a kennel it will cost you some time and work to reinforce and insure your dogs can't get out when your asleep or away. If you have a proper tie out for bulldogs or sled dogs then your gonna have guaranteed security (until a piece of hardware wears out which is still cheaper than repacing a kennel panel from bulldogs goin through it like a hot knife through butter.)
I have 3 tie outs and one kennel that is 8 pannels of 12ft NOPE 7 panels I forgot I lost a pannel just to what I speak above ^^^^ .. Its in baseball field shape and Im putting 2X10s around the bottom and adding 4in of gravel, Im putting goat wire on top, and over that an old trampeline mat for extra protection and shade from elements. This is for the dogs I've hand raise with my kids and even when on chains they have total manners and no chain poppin dogs around here, the hand/crate/leash training from day one putting the dog on a chain spot at 4months (chains come in various gauges I have a couple for small dogs and I switch them as needed) and letting them off and on for work and excercise.
I have stock animals all around except chickens, so its important the dogs know how to move off lead and are voice operable. This pays off well when at the beach, park, etc public places.
is a chain animal cruelity.. NO .. The cage they stick em in for 3 days surrounded by cement and parvo death however is animal cruelty.. I used to euthanize for SPCA and I had to put down 26 dogs(mostly "PITBULLS"

) a day and countless cats. They were against tethering there as well until I showed them Hooch. Hooch was loved by all of em, he had run of the office.. because calmly crated in the presence of people was the only was to secure him. IF he felt unsupervised in any way, nothing would keep him contained. Chains (unless set up with a 4ft pole, with swivel and chain over 3000lbs break strength, as he could pull a Scottsdale 1500), Kennels, Stock pens, Crates, walls, windows, doors, leash tied to desk, and even his own kennel run at the SPCA did not slow him down, .. The best advice is GOOD MANAGEMENT skills

I mean the entire package, from training to keep, then they know how to act. I done with two chain dogs as well, brought into the house or covered porch; through the winter and crated em. Let em out to pee and play ball for a minute then right back in, in the crate... come spring,, back on the chain.