The chapter explores how perceived effort influences individuals' choices between stairs and escalators, highlighting the impact of factors like physical condition, age, and energy levels on decision-making. It delves into the inviting nature of affordances and how altering the effort required can make specific affordances more appealing, drawing on examples from sporting equipment adaptation for young athletes. The discussion also delves into Wythigan et al's model, emphasizing individuals' agency in choosing which affordances to act upon based on a combination of individual capabilities, environmental factors, and cultural norms.