Options empower. When we make pipes available people can make informed decisions around their modes of administration. Not everybody wants to inject all the time. By lessening reliance on syringes, we can reinforce autonomy among people who use drugs.

Pipes are a hassle-free mode of administration that allow for titration and ease of use. When we simplify consumption, people can take what they need, as they need it. Going slow helps lower the risk of overdose.
As engagement tools, pipe distribution creates avenues for Naloxone distribution, bringing the life-saving overdose antidote into communities which may not otherwise have access. 

When we lessen reliance on syringes, we lower the risk of HIV or HCV transmission through the sharing of equipment. 
Pipes themselves are shared due to scarcity, and when we provide new, clean, unbroken glassware we can help prevent HCV being transmitted through chapped lips, saliva, or blood. 

Harm reduction services for people who use drugs are almost entirely focused on opioid injection. Pipes create safer-use options for people who don't inject, or who prefer stimulants as a primary drug. Why restrict your program's ancillary services to only those who inject? Pipes are an excellent way to open your door to all people who use drugs, who can benefit from your organization.