My big German shepherd is always being dressed up, though she enjoys it and if she didn't I wouldn't do it. I think.it's okay dressing up your dog is;
1) they need it (boots for winter time to protect from the chemicals and cold, jackets for smaller dogs or even bigger dogs without a lot of fur)
2) They're not being harmed by it
3) You understand when to stop
My dog has a sweater and loves it she actually gets mad if we take it off, but it's to keep her a bit warmer outside or look a bit cuter, because compared to most small dogs, big dogs tend to be able to handle it better and enjoy it. (This is what I've noticed not actual facts with the small dog big dog comparison)
1) they need it (boots for winter time to protect from the chemicals and cold, jackets for smaller dogs or even bigger dogs without a lot of fur)
2) They're not being harmed by it
3) You understand when to stop
My dog has a sweater and loves it she actually gets mad if we take it off, but it's to keep her a bit warmer outside or look a bit cuter, because compared to most small dogs, big dogs tend to be able to handle it better and enjoy it. (This is what I've noticed not actual facts with the small dog big dog comparison)