Ascondai. Gundams are pretty great. All you really need to start is like a hobby knife, a pair of snips (think like small wire cutters), and some sandpaper (or file). You can get it all at a grocery store. But yeah there are like different grades and depending on the age some require more work. But in general they are snap builds and dont require glue. Now if you get really into it, you can glue pieces, paint, add leds, really do anything you want.
If youre interested I recommend the r/gunpla community on reddit.