Many assume that Gen Z is the most conscious and environmentally friendly generation. For the most part, they are not wrong. A study by management consulting firm Deloitte found that those born between 1997 and 2012 are more likely to adopt sustainable habits than older demographic groups. These include avoiding air travel, adopting a vegan or vegetarian diet and avoiding fast fashion. Similarly, research from analytics platform First Insight found that nearly three-quarters of Gen Z consumers are willing to pay more for sustainable products if budgets allow.
However, perception and purchasing habits do not always match. Gen Z already has significant global purchasing power. This is expected to reach $12 trillion by 2030. They spend an average of $6,700 a year, more than older generations. According to YouGov, shoppers aged 18 to 27 made around 62 percent of their general merchandise purchases in physical stores last year. They are also twice as likely as older consumers to visit clothing stores each month. This raises the question: are they really as sustainable as we think?
To find out, the packaging company Arka analyzed purchasing motivations across generations. It examined consumers’ shopping behavior, purchasing incentives and channels of influence to determine which age group is actually the most sustainable and how generational habits shape environmental impact. Below we share their results, broken down by demographic group.
Gen Alpha (2010 – 2024)
As the youngest generation on the market, Gen Alpha already has annual direct spending of $28 billion. In addition, there are purchases made by parents, family and carers. Gen Alpha does share some social media purchasing behavior trends with Gen Z, such as TikTok and YouTube. However, the majority of their brand discovery occurs through games, with Roblox, Fortnite and streaming influencers being popular. As a result, many established brands are having even more difficulty adapting to these changing preferences than they are with Gen Z.
- Central purchasing motivations: play, identity, participation.
Gen Z (1997 – 2012)
Although Gen Z is gaining a larger share of purchasing power, according to Arka, it is still less than that of previous generations. Gen Z’s lower purchasing power has contributed to a shopping culture that aims to balance affordability and sophistication. Second-hand fashion is often combined with occasional luxury investments. Despite the apparent contradiction, many consumers in this demographic associate premium and designer brands with better craftsmanship, quality and durability. Similar to Gen Alpha, their consumption patterns are heavily influenced by social media platforms and the constant cycle of emerging micro-trends.
- Central purchasing motivations: authenticity, uniqueness, sustainability.
Millennials (1981 – 1996)
Millennials share Gen Z’s interest in luxury products, but their motivations are slightly different. Instead of focusing primarily on longevity, many Millennials view premium purchases as an investment or a symbol of success. Self-rewarding behavior is particularly common in this demographic. Consumers often justify purchases as a celebration of milestones or hard work. Their purchasing decisions are also uniquely shaped by nostalgia, a factor that has less impact on other generations.
- Central purchasing motivations: self-reward, investments, quality and history.
Gen X (1965 – 1980)
Although recycling and sustainability trends are often associated with Gen Z, Arka says Gen X is actually the generation that shows the strongest commitment to sustainable practices. More than a third actively recycle or upcycle items, compared to just under a quarter of Gen Z consumers. Instead of following fast-moving trends, Gen X shoppers prefer reliable brands. They research products in physical stores, websites, and email newsletters. Their purchases are typically motivated by practical needs, such as travel, replacing durable goods, or upgrading items for family life.
- Central purchasing motivations: reliability, service, pragmatic premium demands.
Baby boomers (1946 – 1964)
Across all generations, baby boomers are the easiest buyers to predict. That’s partly because their preferences have shaped many of today’s brands in the first place. They tend to be slow to embrace change. They remain loyal and stick with well-known names once they trust the quality or find the purchasing process convenient. Like Millennials, they also respond well to loyalty programs that increase their loyalty to the brands they already favor.
- Central purchasing motivations: trust, tradition, quality assurance.
“Sustainability is not a one-size-fits-all solution, and the data proves it,” commented the sustainability consultant at Arka. “Gen
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