Yes that would be a good idea.

Also just so you don't think I have something particular against buggies - I really don't - just daft/inconsiderate behaviour.
I witnessed the ridiculous scenario on Sunday getting the 23 bus from Paddington to Charing Cross. One man with 4 suitcases was allowed to stack them in the priority seating area at the front of the bus thereby preventing elderly, disabled, and passengers with children from using the space. The driver should never have allowed this either - but like I said before I'm sure they just want an easy life, so rules are not enforced. The man in question seemed to have no shame about it.