@MLMhun Yes, your dog is older than mine so makes more sense.
I don't want to rush my dog into using one, she doesn't have any problems with walking; happy to do half an hour walk or even longer in the park running. I'd just like to be able to go for longer walks without having to carry her. Like you, I find she gets heavy after a while.
Also she does have pancreatitis flare ups from time to time and can be left quite tired after she's been ill, which is really the main reason I'd like to have one as she can't walk far at all at those times but still wants to get out and about, so I end up carrying her.
I don't know about people judging at seeing dogs in prams but I've had loads of judgy remarks from people when I've been carrying her, so I imagine a dog in a pram would elicit quite a bit of nastiness from a certain type of person; they're best ignored.
i was also quite surprised at the variation in price. Not sure I'd want to pay over £200 for a dog pram tbh.
I found lots of advice on one website on how to get your dog used to using one, bit like crate training.
I know someone who bought one second hand on ebay and his old dog loves her pram. She can't walk far but will get out and have a little wander and bark when she wants to go back in.
I will probably hold off for a bit for my dog, unless the pancreatitis flare ups get more frequent, but at your dog's age I'd definitely get one.