Most boat owners can't store their boats inside. I never could. And owners shouldn't have to, in order to protect their investment from **** poor manufacturing. The "get 'em out the door" mentality caused a lot of grief & money for unsuspecting boat owners who were screwed over by the industry. JMHO
"Never" is not necessarily an absolute. I couldn't either as a kid with a part time job. But I worked a second job and rented a garage just to be safe. The rental cost less than my investment in the boat.
Grandpa couldn't afford it either and didn't even have off-street parking for his car. The boat lived alongside the house. Nevertheless, the heavy canvas tarp kept her pristine for many, many years.
There always is a way.
Back in the day, the "unsuspecting" had a choice. The well made boats cost more than the average person was willing to spend. The entry level boats enabled the average Joe to have a boat at a reasonable price. I personally had boats made in the 1970's and 1980's and both are still in service today. Best investments I ever made.
Keep em dry, cover em up, keep em out of the son and your grandchildren can enjoy them. Park em outside with no cover and let mother nature have her way, and then we can say bad things about the industry.
(Just my humble opinion from an old guy with a lot of old stuff)