Basically the issue with the knees is you don't want to start riding a horse too strenuously until the knees close. For each breed it is different. Some close at 3, others, like drafts and WBs, can wait until 5 or so.
the act of making or enacting laws. 2. a law or a body of laws enacted. Origin of legislation.
Some people think there should be more legislation in the area of education and some people think there should be less â governments debate the matter periodically. The noun legislation refers to the actual law enacted by a legislative body at the national, state, or local level. There has been some very odd legislation over the years. In one state it was illegal to kiss on a train; in another, it was illegal to take a bath on Sunday. The sweeping legislation made radical changes to tax law, health care, and immigration law.