Help required
 

I started on MTB's in 1990 and it was not long before I went clipless. 6 years ago I got my first road bike and stayed with the clipless system I had which was Shimano SPD. The pedals worked OK and I already had couple of pairs of well worn in comfortable shoes for SPD's that I could walk about in. I did make the concession of buying A520 pedals to replace the M520's as they look more road like.

I am happy with the pedals and the shoes and can see no reason to change.

So why have I just ordered a set of Shimano SPD-SL shoes for the one set of road pedals that are in my stock but never used?

Have I lost my mind or will I never be able to get off the bike to walk into a Cafe for Pie again.

Yes

Walking with SPD-SL cleats is not a problem. The cleats are made of plastic so you may want cleat covers if you plan on doing a lot of walking on rough surfaces.

You see a problem, I see opportunity. As a favor to you, after each ride send me your pie money and I'll do the rest.

Repeat after me..."I'm OK, the decision I made was a good one. I trust my ability to do the things that will bring more enjoyment to my riding. I am competent, capable and fully in possession of my faculties.”

Seriously, what can it hurt to try something new?

Your as daft as a brush

Daft as a brush?

I don't see an issue. I have at least six pairs of black high heels in my closet. If I am looking at shoes and see a pair of black high heels that I think I need, I buy them, end of story. I can see how this could easily translate to bike shoes.
Own it, Stapfam. Embrace it. Thank your lucky stars you're not into sports car shopping.

After using SPDs for some time, I have just done the same thing, i.e. bought road shoes for the first time. I will also use the SPD-SLs. I think of it as a science project... a great and noble quest for knowledge beyond the "book learning" you can get here. :)

It is the duty of each true knight. Don't let them break your spirit.... Carry on Sancho!