Dilettantes are less and less acceptable.

I have an intelligent interest in
Trees and shrubs
Plants generally
Dogs
Middle Eastern and North African rugs
Middle Eastern and North African music
Middle Eastern (and any) vegetarian cuisine
Indian, European, Japanese, Middle Eastern and North African classical music
Irish slow airs
Balkan traditional musics
Folk-Fusion jazz (especially North African)
Ceramics (world-wide, non-industrial)
Pre-modern European diet
Landscape that is not flat
Painting, from Roman to contemporary
Iconography and the metamorphosis of motifs
Romanesque 'marginal' sculptures
Megaliths
Literary novels and political thrillers
Poetry of the exalted kind
Poetry of the honest kind
Fascinating facts (such as that the Prague-Vienna express train has a fresh orchid in each of its toilets)
Corkscrews (I have reduced my collection to around 50)
Linguistics and toponymy (place-names)
Experimental photography
'Vernacular' architecture from corbelled hen-houses to substantial farmhouses
Distilled fruit alcohols such as those made from quinces, sorb-apples, blackberries, holly-berries...

       ...and so on.

But few people that I meet are interested in more than one of these -
which is why I am somewhat solitary.

But, my widowed neighbour Josette Porquelette has feelings of the same order.
She even understands some of the complexities of the Irish Border!