Just the opposite at TLM.
And other traditionally minded parishes. Our 1200 seat sanctuary in Arizona is bursting at the seams at all 8 weekend masses. We aren't allowed to have the TLM anymore, but our priests do their best to keep it Traditional with Gregorian chant instead of happy-clappy guitars, ad orientum at the eucharist, an altar rail, only male altar servers, lots of Latin in the responses,hard-hitting homilies, and tons of incense.
Yup. Lots of young people with big families.