I’ve hardly ever seen anyone using the Getting Started Tool Set in SketchUp. The SketchUp courses I’ve seen often start by telling how to get the Large Tool Set to show instead and even the video tutorials show the Large Tool Set (of course with people asking in the comments how to get the toolbars to display that way).
In my view the Large Tool Set is superior in every way. The Large Tool Set doesn’t hide commands in fall out menus, which makes it easier for new users to remember the tools and find what they are looking for; you can easily see the Circle tool without first having to guess it’s concealed underneath the rectangle tool.
The Large Tool Set is by default also organized as a grid, making it much easier to remember the location of the icons as they have a much stronger spatial relation to each other than when just being organized as an array. You easily remember that Follow Me is located below Push Pull, which is located close to Move which is above Rotate. With Getting Started you just remember a tool is e.g. somewhere around the middle.
The Getting Started Tool Set also lacks several tools that are useful even for new users, e.g. Follow Me, and is quite inconsistent in what tools it contains. E.g. it has Tape Measure but not Protractor which is its sister tool. It also has 2D text but not 3D text.
Getting Started is also, in view, cluttered by the Open 3D Warehouse, Open Extension Warehouse and Send to Layout commands that aren’t tools and therefore in my view are more appropriate to launch from a menu than a toolbar, especially if the toolbar otherwise only contains tools used to interact with the model.
Lastly, eventually you will switch to the Large Tool Set anyway because you need the tools in it, or simply to easier follow tutorials. If you don’t then hide Getting Started you’ll end up with a lot of duplicated buttons that uses up screen real estate and clutters the interface. Switching toolbar after having used Getting Started for a while requires you to unlearn what you have already gotten used to to learn something else instead. To me this is extremely counter-intuitive. Don’t get me wrong, I love the modular approach of SketchUp and how you can add more tools and features as you learn, but you shouldn’t along that path have to go backwards and unlearn anything you’ve previously learned. The program shouldn’t set you out on the wrong course to begin with and then force you to go back again to chose another path.