There is no definitive answer to this question as it largely depends on the individual and what they are buying. Some people may read reviews for everything they purchase, while others may only consult reviews for big-ticket items. Additionally, some people may place more trust in reviews than others.
That being said, a recent study by Podium found that 84% of consumers seek out online reviews before making a purchase decision. This suggests that a significant majority of people do consult reviews before buying something.
When it comes to why people read reviews, the most common reasons cited include wanting to see if the product or service is worth the price (62%), wanting to learn about other people's experiences (54%), and looking for unbiased information (51%).
So if you're wondering whether you should be reading reviews before making a purchase, the answer is probably yes. Not only will it give you a better idea of what you're getting for your money, but it can also help ensure that you're happy with your final decision.