Longboarding is super fun, but:
At some point you are going to wreck yourself. Hard. Its inevitable. Usually I dont mind wrecking, but road rash is awful, broken bones, broken teeth, bruising so bad that you will think you’re internally bleeding. These all take a long time to recover from, eating into valuable leisure time. Oh, and did I mention cars? A small pebble in the road will **** up your life etc etc. The UK sucks to ride due to a patchwork of drains, cheap road surfacing, rain etc etc.
After a couple of these wrecks, you will seriously re-evaluate whats fun about longboarding. The longboard will become a (cool) ornament in your house. Its the cycle of longboarding life.
If you do decide to go for it, learn to ride on one of those “built in 2008 road networks for an industrial estate where none of the buildings got built” – No cars, and nice smooth asphalt.