You aren't stating science. You are stating your opinion, no study will say sun exposure causes premature aging only excessive. So stop dap fishing Mr militant.
You just can't stop trolling can you???
Sunlight and aging: Signs, pictures, and treatments - https://www.medicalnewstoday.com/articles/sunlight-aging#impact
Does the sun cause most aging?
Yes, there is evidence that the sun causes most signs of skin aging in those with lighter skin.
An older study involving 298 white women ages 30–75 years concluded that exposure to the sun may cause around 80% of visible skin aging.
It is unclear how this compares to photoaging in darker skin, as no studies have evaluated this. However, darker skin is generally less vulnerable to photoaging than lighter skin because it contains more
melanin. Melanin is the pigment that gives skin its color. It also provides some protection from UV light.
Aging Differences in Ethnic Skin - https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4756870/
Cumulative sun exposure is the most important extrinsic factor in aging skin. In skin types III to VI, dyspigmentation is one of the most common features of photoaging. Common clinical signs of photoaging include lentigines, rhytides, telangiectasias, dark spots, and loss of elasticity.
Skin of color is less susceptible to sun-induced damage so these clinical manifestations of aging are less severe and typically occur 10 to 20 years later than those of age-matched white counterparts. Other extrinsic factors, such as smoking, excessive alcohol, and poor nutrition, can also contribute to premature skin aging.