Yes, I do all this. This is both the maintenance of plant structure, and, the development and refining of plant structure. These four terms are inter-related. Collectively they can be called 'trimming', and with careful aesthetic, 'sculpturing', in the sense of making a graceful structure with potentially 'fine detail'. Most any plant with growth that can be attractively modified can be trained by appropriate trimming to keep the plant smaller and/or more stylish than it would on it's own. These concepts apply to practically all plants managed by humans, from annuals and herbaceous perennials, including grasses, through to shrubs, trees, and vines. Common examples: pruning for structural arrangement for best quality of certain fruits, such as peaches and nectarines; rose pruning; size control, - keeping a standard growing tree or shrub gracefully dwarfed by pruning at appropriate and necessary intervals; managing and trimming growth of some slow to moderate growing shrubs and small trees to create uniquely stylish structural branching that is elegantly elongated and/or thinned and arranged; the highly detailed trimming culture that is done with some Japanese Black Pines; bonsai is a form of elegantly structured dwarfing by trimming management, whether done in pots as the word refers to, or at various scales of size in the ground. Espaliering is another form of artistic trimming management.
The term pruning is most commonly applied to deciduous bushes and trees, such as roses and some fruit trees, for example, - those that have a normal leafless period, such as in winter(though some plants/trees have a Spring or late Summer leafless period). Pruning includes some degree of lacing; lacing is primarily moderate thinning in order to produce a less densely branched informal or formal shape, most commonly applied to evergreen trees and shrubs, and sometimes done to a high degree of detail, like a sculpture, especially when done with a some 'tipping' which is the cutting back, to one degree or another, of certain twigs and/or branches for shaping purposes. Shaping includes the above, in addition to shearing. Shearing is typically done with shears(of course) to make plants into hedges, and other more elaborately sculptured shapes, called topiaries. In some cases with hedges and topiaries, just regular hand clippers/secateurs are used if it is desired to not cut into the leaves, - more exacting cutting. Grooming may include any of the above, and, taking out withered leaves, twigs, and dead materials on the plant structure. Proper use of all these techniques obviously makes for a neater and fresher landscape appearance, when and where appropriate.
I physically work on trees which are up to about 20 feet. I can either haul the trimmings away or put them in your trash cans.