My house is 26 years old and we originally had carpet everywhere. It's all been replaced with laminate flooring except for one room... the guest room/my studio. This originally started out as my MIL's room and she had a little dog - who didn't always go outside for his business. Over the years, a cat, and then Koda could still smell the past indiscretions and made it considerably worse. I've tried everything on that old carpet as a band aid to the problem and nothing worked. Always intended to rip up the carpet and replace with laminate, but the "help" (son/grandsons) aren't around and the laminate is beyond my abilities. I can rip up carpet --- and I am.
This is subfloor - rough particle board, but I did a good bit of research before I started and found it can be painted. I can't put down laminate, but I can paint (slowly, but I can do it).
I didn't take a picture of the entire room before I started, but you'll get the idea of the carpet from the first photo. Now mind you - that room is BEYOND FULL of furniture. You have to move furniture before you can rip up the carpet. I've done pretty good so far, but have a hutch in there I think I'm gonna call a neighbor to help me with.
This is my sewing "nook". Chuck built my sewing table not long before he passed away and it's perfect - machine and serger both easily available with storage underneath (way too much storage, I was amazed at what all was down there).
And here's that sewing nook - ready for the furniture to be moved back today.
This would be easier if all the furniture were out, but life isn't always easier. I wouldn't be able to do it all at one time anyway - don't have that much energy. And my body - we won't even talk about how it feels :-)