I wear disposables exclusively, and I'll often wear plastic pants when I venture outside the house to cut down on bulk/noise.
Aside from minimizing leaking, they're also good at helping to control odor for extended diaper sessions. This is especially beneficial if you wear to work and are either too busy or too shy to change in a public restroom. Obviously, it won't mask #2s as effectively, but a good pair of relatively tight-fitting plastic pants will buy you several additional hours before urine odor becomes as noticeable.
I work a lot from home, where I'll just wear disposables directly under my pants, but I'm still very discreet about wearing to an external work site. I've found plastic pants really help to limit the tell-tale signs (i.e., crinkle, bulk, odor, leakage), and I've become a lot more comfortable over time with wearing in public as a result.
Any shy babies like me would do well to consider having a few pairs of plastic pants on hand for cases where discretion is of paramount concern.
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That said: I'm actually in the market for a couple new pairs of plastic pants. I'm looking for a tasteful blend of functionality and "cuteness" that won't break the bank. Any good recommendations?
Thanks in advance!