Oh yeah - been meaning to comment on this thread all week & kept forgetting! Another vote here for: A good pair of walking boots is all you need & are multi-purpose. Or for walking in town, good dress boots.
TBH, I think your b/f is right, Wellies are superfluous. The above two would see you through town & country, and mud, plus walking boots will have a surer grip on slippery surfaces & are far more comfortable for walking any kind of distance (if you're going rambling around the Lake District, climbing fells, etc - you definitely want walking boots!).
On the other hand, if you just want Wellies to be fashionable (i.e., another pair of shoes for your collection/selection), then go for it.
I've been here 6+ years and haven't
needed Wellies yet. For anything I might need them for, my walking boots are more fit for purpose - I have two pair of them & I'm looking to buy a third pair...
