Yes motorcycle insurance will always be expensive for a first time motorcycle rider of 18 to 19 years old with no motorcycle driving record.
As the motorcycle rider gets more experience and ages as well as has a good motorcycle riding record the motorcycle insurance will usually get cheaper as long as you do not have any motorcycle accidents or any at fault accidents.
Keep the motorcycle riding record clean and have no at fault motorcycle accidents and once you get to 25 and above the motorcycle insurance cost will usually come down.
If your motorcycle insurance doesn't automatically come down after 25 years of age then you should speak with the motorcycle insurance company and they will usually lower your motorcycle insurance costs.
It's also usually cheaper to bundle your motorcycle insurance with your home or auto insurance as well as you can get a discount bundling the motorcycle and auto insurance or homeowners insurance together.
The average cost for motorcycle insurance for a 18 to 19 year old will be around $460.00 to $800.00 for basic liability motorcycle insurance depending on who you go with.
Of course if you're financing a motorcycle then the motorcycle finance company will require full coverage motorcycle insurance on the financed motorcycle which can be a bit higher in cost but should be no more than $800.00 per year but sometimes less.
It's a good idea to shop around for the best motorcycle insurance rates.