Pets are a big market in Japan. There are pet spas and pet hotels (even one at Narita Airport), pet strollers and many, many shops selling costumes (I saw a dog wearing a Softbank Hawks uniform the other day). Not just any costume- they have pajamas, raincoats, dresses, sweaters, snow gear, etc.
That’s the thing I find most different between Japan and what I see in Canada. In Japan, most pet dogs are super miniature in size (chihuahus, shit tzus, poodles) and most of them wear clothes or are carried by women in their bags or strollers. I think this isn’t exactly the norm for many western countries (maybe besides the pets toted around by Hollywood celebrities). The price for pets are also very surprising. Most start from ￥150,000. Yikes!!!! Personally I like big dogs and ones wearing just their own fur (and ones costing 10% of the price of Japanese ones), so I’m not that tempted when I go by pet stores!