The first is that much of it is optional. Stuff like fast food. People can do without it much easier than doing without a washing machine.
The second is, for many services, such as child care and elderly care, most adults are terrible at assessing quality. This creates a race to the bottom much like you see in manufacturing, making the jobs low wage. Because humans are humans you can't really point to a specific consequence of this either.
The first is that much of it is optional. Stuff like fast food. People can do without it much easier than doing without a washing machine.
The second is, for many services, such as child care and elderly care, most adults are terrible at assessing quality. This creates a race to the bottom much like you see in manufacturing, making the jobs low wage. Because humans are humans you can't really point to a specific consequence of this either.