This seems like a simple question, but it is slightly complicated to answer.
As you now know, the Three Point Hitch is a universal standard. With an economy tractor you have to back the tractor to the implement very precisely in order to insert the two LOWER LINK attachment pins. Many use an iron 'spud bar' to jockey the implement a tiny amount to make holes align, rather then moving the tractor repeatedly. So attaching implements to a 1,700 pound bare weight subcompact tractor, which will use light implements, is relatively easy.
Deluxe tractors have LOWER LINKS which telescope about 2-1/2", so the tractor does not have to be as precisely positioned. Deluxe tractors have telescoping LOWER LINK
stabilizers too, which make implement connection easier. Implements for a 4,000 pound bare weight tractor weigh 600 pounds to 1,200 pounds; heavy implements are difficult to move manually.
Economy tractors often have an optional "Quick Hitch" attached to the LOWER LINKS. This allows LOWER LINKS to pass under pins, then raise, capturing LOWER LINK pins in a slot. Almost every implement manufacturer produces rear "Quick Hitches" as well as implements. The TOP LINK is not modified by the Quick Hitch. (The most popular Quick Hitch not associated with tractor brand affiliated implement producer is Pat's Quick Hitch, produced by Greenwell Manufacturing in Kentucky.)
When I was younger and less experienced with tractors I owned two economy tractors around 2,000 pounds bare tractor weight. Each had individual quirks connecting implements. At first I found connecting implements confounding, especially in hot Florida weather and I grudged the time and sweat involved. With experience connecting implements became easier. (I use my tractor 250 - 300 engine hours per year.)
Do you need a Quick Hitch?
What weight tractor and what weight implements will you buy?
How many implements will you own over time and how often will you exchange one for another?
(Quick Hitch stays on the tractor, so you only need one)
Can you afford a deluxe tractor, rather than an economy tractor?
Quick Hitch downsides:
QHs lengthen LOWER LINKS 3" to 4" so you need to make QH decision before you buy PTO powered implements, as the PTO shaft length has to be custom cut to fit the length of LOWER LINKS.
Almost all NEW implements are compatible with QHs. Older implements not. So you may find QH is not compatible with old, used implements you may wish to buy.
A QH does nothing to assist mating an implement PTO shaft to the PTO splines on the tractor. PTO mating is always a greasy struggle but another evolution that becomes simpler with experience and finding the appropriate spline lube.
So many who purchase QHs will be homeowners who only use tractors around 80 engine hours per year and are not interested in spending time struggling with implement mounting.
Most tractor implements do not use tractor PTO power, THANK GOD.
VIDEOS (2):
tractor quick hitch category 1 - YouTube
Pats tractor quick hitch - YouTube
I am dedicated to simplicity in everything tractor. I love the hitch on my deluxe Kubota 'Grand L' tractor at age 72 years. Now that I have 2,500 engine hours of tractor experience I could live with an economy tractor without a QH if budget required an economy tractor rather than a deluxe tractor.